Open Health Hub FHIR Implementation Guide
0.1.0 - v0.1.0

Open Health Hub FHIR Implementation Guide - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Resource Profile: OHH Questionnaire

Official URL: https://api.openhealthhub.com/OpenHealthhub/fhir/4/StructureDefinition/ohh-questionnaire Version: 0.1.0
Active as of 2026-10-27 Computable Name: OhhQuestionnaire

Questionnaire profile for Open Health Hub Questionnaire resources

Scope and Usage

Patients and healthcare professionals can interact with healthcare professionals through questionnaires in our form filler. A Questionnaire can either be selected from the Library or custom-made in our Form Designer. Our Form Designer allows the user to specify custom codings for questions. These codings can be used to map data in this resource to existing data. The blank questionnaire is made available in FHIR format through this endpoint.

Questionnaires are versioned. If you get the questionnaire by id, you get the latest version which is used in one of your plan definitions. You can also request a specific version. It is possible that patients answered an old version of the questionnaire in the past. Therefore, references to the questionnaire (for example in the questionnaire response) are always to a specific version.

Generally, the Questionnaire item components retrieved through this endpoint correspond to questions created in the Form Designer. An exception to this is the readonly text items that are generated for the formulas defined in the Form Designer. These are made so that even if a result slide is not defined (where the formula is mentioned as a sub item), the formula will still be in the questionnaire.

Questionnaires contain a list of item elements which represent the specific questions in the questionnaire.

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

This structure is derived from SDCBaseQuestionnaire

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Questionnaire 0..* SDCBaseQuestionnaire A structured set of questions
Questionnaire.id This element must be supported. 1..1 id Logical id of this artifact
Questionnaire.language This element must be supported. 1..1 code Language of the resource content
Questionnaire.extension 1..* Extension Extension
Questionnaire.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.Slices for extension.extension:performerType C 0..* PerformerTypeExtension Resource that can record answers to this Questionnaire
Constraints: sdc-questionnaire-performerTypePattern
Questionnaire.Slices for extension.extension:entryMode This element must be supported. C 1..1 code sequential | prior-edit | random
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-entryMode
Binding: Questionnaire Entry Mode (required): Entry modes when completing a questionnaire
Constraints: entry-mode-allowed
Questionnaire.name 1..1 string Name for this questionnaire (computer friendly)
Questionnaire.title 1..1 string Name for this questionnaire (human friendly)
Questionnaire.status 1..1 code draft | active | retired | unknown
Required Pattern: active (extensions allowed)
Questionnaire.description 1..1 markdown Natural language description of the questionnaire
Questionnaire.item C 0..* BackboneElement Questions and sections within the Questionnaire
Constraints: slider-choiceOrientation
Questionnaire.item.Slices for extension Content/Rules for all slices
Questionnaire.item.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.item.Slices for extension.extension:itemControl 0..1 (Complex) E.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
URL: http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
Questionnaire.item.Slices for extension.extension:itemControl.value[x] 1..1 CodeableConcept Value of extension
Binding: OHH Questionnaire Item Control Value Set (extensible)

doco Documentation for this format

Terminology Bindings (Differential)

Path Status Usage ValueSet Version Source
Questionnaire.item.extension:itemControl.​value[x] Base extensible OHH Questionnaire Item Control Value Set 📦0.1.0 This IG

Constraints

Id Grade Path(s) Description Expression
entry-mode-allowed error Questionnaire.extension:entryMode entryMode must be prior-edit or random (value as code).matches('^(prior-edit|random)$')
sdc-questionnaire-performerTypePattern error Questionnaire.extension:performerType PerformerType must be either Patient or Practitioner (value as code).matches('^(Patient|Practitioner)$')
slider-choiceOrientation error Questionnaire.item The questionnaire-choiceOrientation extension must be present in slider questions. extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').exists().not() or (extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').first().value as CodeableConcept).coding.first().code != 'slider' or extension.where(url ='http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation').exists()
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Questionnaire C 0..* SDCBaseQuestionnaire A structured set of questions
Constraints: que-0, que-2
Questionnaire.id This element must be supported. This element is included in summaries. 1..1 id Logical id of this artifact
Questionnaire.implicitRules This element is a modifier element. This element is included in summaries. 0..1 uri A set of rules under which this content was created
Questionnaire.language This element must be supported. 1..1 code Language of the resource content
Binding: CommonLanguages (preferred): A human language.
Additional BindingsPurpose
AllLanguages Max Binding
Questionnaire.Slices for extension 1..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Questionnaire.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.Slices for extension.extension:performerType This element must be supported. C 0..* code Resource that can record answers to this Questionnaire
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-performerType
Binding: Questionnaire Performer Type (required): Resources that can record answers to a questionnaire.
Constraints: sdc-questionnaire-performerTypePattern
Questionnaire.Slices for extension.extension:assemble-expectation This element must be supported. 0..1 code Questionnaire is modular
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-assemble-expectation
Binding: Questionnaire Assemble Expectation (required)
Questionnaire.Slices for extension.extension:entryMode This element must be supported. C 1..1 code sequential | prior-edit | random
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-entryMode
Binding: Questionnaire Entry Mode (required): Entry modes when completing a questionnaire
Constraints: entry-mode-allowed
Questionnaire.modifierExtension This element is a modifier element. 0..* Extension Extensions that cannot be ignored
Questionnaire.url This element must be supported. This element is included in summaries. 1..1 uri Canonical identifier for this questionnaire, represented as a URI (globally unique)
Questionnaire.version This element must be supported. This element is included in summaries. 0..1 string Business version of the questionnaire
Questionnaire.name This element is included in summaries. C 1..1 string Name for this questionnaire (computer friendly)
Questionnaire.title This element must be supported. This element is included in summaries. 1..1 string Name for this questionnaire (human friendly)
Questionnaire.status This element is a modifier element. This element must be supported. This element is included in summaries. 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.
Required Pattern: active (extensions allowed)
Questionnaire.subjectType This element must be supported. This element is included in summaries. 0..* code Resource that can be subject of QuestionnaireResponse
Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR.
Questionnaire.description 1..1 markdown Natural language description of the questionnaire
Questionnaire.item This element must be supported. C 0..* BackboneElement Questions and sections within the Questionnaire
Constraints: que-1, que-3, que-4, que-5, que-6, que-8, que-9, que-10, que-11, que-12, que-13, sdc-1, slider-choiceOrientation
Questionnaire.item.Slices for extension Content/Rules for all slices
Questionnaire.item.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.item.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.item.Slices for extension.extension:itemControl 0..1 (Complex) E.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
URL: http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
Questionnaire.item.Slices for extension.extension:itemControl.extension 0..0 Extension
Slice: Unordered, Open by value:url
Questionnaire.item.Slices for extension.extension:itemControl.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl"
Questionnaire.item.Slices for extension.extension:itemControl.value[x] 1..1 CodeableConcept Value of extension
Binding: OHH Questionnaire Item Control Value Set (extensible)
Questionnaire.item.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.linkId This element must be supported. 1..1 string Unique id for item in questionnaire
Questionnaire.item.prefix This element must be supported. 0..1 string E.g. "1(a)", "2.5.3"
Questionnaire.item.text This element must be supported. 0..1 string Primary text for the item
Questionnaire.item.type This element must be supported. 1..1 code group | display | boolean | decimal | integer | date | dateTime +
Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
Questionnaire.item.enableWhen This element is a modifier element. C 0..* BackboneElement Only allow data when
Constraints: que-7
Questionnaire.item.enableWhen.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.enableWhen.question 1..1 string Question that determines whether item is enabled
Questionnaire.item.enableWhen.operator 1..1 code exists | = | != | > | < | >= | <=
Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
Questionnaire.item.enableWhen.answer[x] C 1..1 Value for question comparison based on operator
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.enableWhen.answer[x].answerBoolean boolean
Questionnaire.item.enableWhen.answer[x].answerDecimal decimal
Questionnaire.item.enableWhen.answer[x].answerInteger integer
Questionnaire.item.enableWhen.answer[x].answerDate date
Questionnaire.item.enableWhen.answer[x].answerDateTime dateTime
Questionnaire.item.enableWhen.answer[x].answerTime time
Questionnaire.item.enableWhen.answer[x].answerString string
Questionnaire.item.enableWhen.answer[x].answerCoding Coding
Questionnaire.item.enableWhen.answer[x].answerQuantity Quantity
Questionnaire.item.enableWhen.answer[x].answerReference Reference(Resource)
Questionnaire.item.required This element must be supported. C 0..1 boolean Whether the item must be included in data results
Questionnaire.item.repeats This element must be supported. C 0..1 boolean Whether the item may repeat
Questionnaire.item.readOnly This element must be supported. C 0..1 boolean Don't allow human editing
Questionnaire.item.maxLength This element must be supported. C 0..1 integer No more than this many characters
Questionnaire.item.answerValueSet This element must be supported. C 0..1 canonical(SDC ValueSet) Valueset containing permitted answers
Questionnaire.item.answerOption This element must be supported. C 0..* BackboneElement Permitted answer
Questionnaire.item.answerOption.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.answerOption.value[x] 1..1 Answer value
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.answerOption.value[x].valueInteger integer
Questionnaire.item.answerOption.value[x].valueDate date
Questionnaire.item.answerOption.value[x].valueTime time
Questionnaire.item.answerOption.value[x].valueString string
Questionnaire.item.answerOption.value[x].valueCoding Coding
Questionnaire.item.answerOption.value[x].valueReference Reference(Resource)
Questionnaire.item.initial This element must be supported. C 0..* BackboneElement Initial value(s) when item is first rendered
Questionnaire.item.initial.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.initial.value[x] This element must be supported. 1..1 Actual value for initializing the question
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.initial.value[x].valueBoolean boolean
Questionnaire.item.initial.value[x].valueDecimal decimal
Questionnaire.item.initial.value[x].valueInteger integer
Questionnaire.item.initial.value[x].valueDate date
Questionnaire.item.initial.value[x].valueDateTime dateTime
Questionnaire.item.initial.value[x].valueTime time
Questionnaire.item.initial.value[x].valueString string
Questionnaire.item.initial.value[x].valueUri uri
Questionnaire.item.initial.value[x].valueAttachment Attachment
Questionnaire.item.initial.value[x].valueCoding Coding
Questionnaire.item.initial.value[x].valueQuantity Quantity
Questionnaire.item.initial.value[x].valueReference Reference(Resource)
Questionnaire.item.item This element must be supported. C 0..* See item (Questionnaire) Nested questionnaire items

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Questionnaire.language Base preferred Common Languages 📦4.0.1 FHIR Std.
Questionnaire.status Base required PublicationStatus 📍4.0.1 FHIR Std.
Questionnaire.subjectType Base required ResourceType 📍4.0.1 FHIR Std.
Questionnaire.item.extension:itemControl.​value[x] Base extensible OHH Questionnaire Item Control Value Set 📦0.1.0 This IG
Questionnaire.item.type Base required QuestionnaireItemType 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​operator Base required QuestionnaireItemOperator 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​answer[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.answerOption.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.initial.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
dom-2 error Questionnaire If the resource is contained in another resource, it SHALL NOT contain nested Resources contained.contained.empty()
dom-3 error Questionnaire If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a security label contained.meta.security.empty()
dom-6 best practice Questionnaire A resource should have narrative for robust management text.`div`.exists()
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
entry-mode-allowed error Questionnaire.extension:entryMode entryMode must be prior-edit or random (value as code).matches('^(prior-edit|random)$')
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()
que-0 warning Questionnaire Name should be usable as an identifier for the module by machine processing applications such as code generation name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1 error Questionnaire.item Group items must have nested items, display items cannot have nested items (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2 error Questionnaire The link ids for groups and questions must be unique within the questionnaire descendants().linkId.isDistinct()
que-3 error Questionnaire.item Display items cannot have a "code" asserted type!='display' or code.empty()
que-4 error Questionnaire.item A question cannot have both answerOption and answerValueSet answerOption.empty() or answerValueSet.empty()
que-5 error Questionnaire.item Only 'choice' and 'open-choice' items can have answerValueSet (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6 error Questionnaire.item Required and repeat aren't permitted for display items type!='display' or (required.empty() and repeats.empty())
que-7 error Questionnaire.item.enableWhen If the operator is 'exists', the value must be a boolean operator = 'exists' implies (answer is Boolean)
que-8 error Questionnaire.item Initial values can't be specified for groups or display items (type!='group' and type!='display') or initial.empty()
que-9 error Questionnaire.item Read-only can't be specified for "display" items type!='display' or readOnly.empty()
que-10 error Questionnaire.item Maximum length can only be declared for simple question types (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11 error Questionnaire.item If one or more answerOption is present, initial[x] must be missing answerOption.empty() or initial.empty()
que-12 error Questionnaire.item If there are more than one enableWhen, enableBehavior must be specified enableWhen.count() > 2 implies enableBehavior.exists()
que-13 error Questionnaire.item Can only have multiple initial values for repeating items repeats=true or initial.count() <= 1
sdc-1 error Questionnaire.item An item cannot have an answerExpression if answerOption or answerValueSet is already present. extension('http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-answerExpression').empty().not() implies (answerOption.empty() and answerValueSet.empty())
sdc-questionnaire-performerTypePattern error Questionnaire.extension:performerType PerformerType must be either Patient or Practitioner (value as code).matches('^(Patient|Practitioner)$')
slider-choiceOrientation error Questionnaire.item The questionnaire-choiceOrientation extension must be present in slider questions. extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').exists().not() or (extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').first().value as CodeableConcept).coding.first().code != 'slider' or extension.where(url ='http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation').exists()
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Questionnaire C 0..* SDCBaseQuestionnaire A structured set of questions
Constraints: que-0, que-2
Questionnaire.id This element must be supported. This element is included in summaries. 1..1 id Logical id of this artifact
Questionnaire.meta This element is included in summaries. 0..1 Meta Metadata about the resource
Questionnaire.implicitRules This element is a modifier element. This element is included in summaries. 0..1 uri A set of rules under which this content was created
Questionnaire.language This element must be supported. 1..1 code Language of the resource content
Binding: CommonLanguages (preferred): A human language.
Additional BindingsPurpose
AllLanguages Max Binding
Questionnaire.text 0..1 Narrative Text summary of the resource, for human interpretation
This profile does not constrain the narrative in regard to content, language, or traceability to data elements
Questionnaire.contained 0..* Resource Contained, inline Resources
Questionnaire.Slices for extension 1..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Questionnaire.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.Slices for extension.extension:performerType This element must be supported. C 0..* code Resource that can record answers to this Questionnaire
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-performerType
Binding: Questionnaire Performer Type (required): Resources that can record answers to a questionnaire.
Constraints: sdc-questionnaire-performerTypePattern
Questionnaire.Slices for extension.extension:assemble-expectation This element must be supported. 0..1 code Questionnaire is modular
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-assemble-expectation
Binding: Questionnaire Assemble Expectation (required)
Questionnaire.Slices for extension.extension:entryMode This element must be supported. C 1..1 code sequential | prior-edit | random
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-entryMode
Binding: Questionnaire Entry Mode (required): Entry modes when completing a questionnaire
Constraints: entry-mode-allowed
Questionnaire.modifierExtension This element is a modifier element. 0..* Extension Extensions that cannot be ignored
Questionnaire.url This element must be supported. This element is included in summaries. 1..1 uri Canonical identifier for this questionnaire, represented as a URI (globally unique)
Questionnaire.identifier This element is included in summaries. 0..* Identifier Additional identifier for the questionnaire
Questionnaire.version This element must be supported. This element is included in summaries. 0..1 string Business version of the questionnaire
Questionnaire.name This element is included in summaries. C 1..1 string Name for this questionnaire (computer friendly)
Questionnaire.title This element must be supported. This element is included in summaries. 1..1 string Name for this questionnaire (human friendly)
Questionnaire.derivedFrom 0..* canonical(Questionnaire) Instantiates protocol or definition
Questionnaire.status This element is a modifier element. This element must be supported. This element is included in summaries. 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.
Required Pattern: active (extensions allowed)
Questionnaire.experimental This element is included in summaries. 0..1 boolean For testing purposes, not real usage
Questionnaire.subjectType This element must be supported. This element is included in summaries. 0..* code Resource that can be subject of QuestionnaireResponse
Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR.
Questionnaire.date This element is included in summaries. 0..1 dateTime Date last changed
Questionnaire.publisher This element is included in summaries. 0..1 string Name of the publisher (organization or individual)
Questionnaire.contact This element is included in summaries. 0..* ContactDetail Contact details for the publisher
Questionnaire.description 1..1 markdown Natural language description of the questionnaire
Questionnaire.useContext This element is included in summaries. 0..* UsageContext The context that the content is intended to support
Questionnaire.jurisdiction This element is included in summaries. 0..* CodeableConcept Intended jurisdiction for questionnaire (if applicable)
Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use.
Questionnaire.purpose 0..1 markdown Why this questionnaire is defined
Questionnaire.copyright 0..1 markdown Use and/or publishing restrictions
Questionnaire.approvalDate 0..1 date When the questionnaire was approved by publisher
Questionnaire.lastReviewDate 0..1 date When the questionnaire was last reviewed
Questionnaire.effectivePeriod This element is included in summaries. 0..1 Period When the questionnaire is expected to be used
Questionnaire.code This element is included in summaries. 0..* Coding Concept that represents the overall questionnaire
Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
Questionnaire.item This element must be supported. C 0..* BackboneElement Questions and sections within the Questionnaire
Constraints: que-1, que-3, que-4, que-5, que-6, que-8, que-9, que-10, que-11, que-12, que-13, sdc-1, slider-choiceOrientation
Questionnaire.item.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url
Questionnaire.item.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.item.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.item.Slices for extension.extension:itemControl 0..1 (Complex) E.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
URL: http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
Questionnaire.item.Slices for extension.extension:itemControl.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.Slices for extension.extension:itemControl.extension 0..0 Extension
Slice: Unordered, Open by value:url
Questionnaire.item.Slices for extension.extension:itemControl.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl"
Questionnaire.item.Slices for extension.extension:itemControl.value[x] 1..1 CodeableConcept Value of extension
Binding: OHH Questionnaire Item Control Value Set (extensible)
Questionnaire.item.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.linkId This element must be supported. 1..1 string Unique id for item in questionnaire
Questionnaire.item.definition 0..1 uri ElementDefinition - details for the item
Questionnaire.item.code C 0..* Coding Corresponding concept for this item in a terminology
Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
Questionnaire.item.prefix This element must be supported. 0..1 string E.g. "1(a)", "2.5.3"
Questionnaire.item.text This element must be supported. 0..1 string Primary text for the item
Questionnaire.item.type This element must be supported. 1..1 code group | display | boolean | decimal | integer | date | dateTime +
Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
Questionnaire.item.enableWhen This element is a modifier element. C 0..* BackboneElement Only allow data when
Constraints: que-7
Questionnaire.item.enableWhen.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.enableWhen.extension 0..* Extension Additional content defined by implementations
Questionnaire.item.enableWhen.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.enableWhen.question 1..1 string Question that determines whether item is enabled
Questionnaire.item.enableWhen.operator 1..1 code exists | = | != | > | < | >= | <=
Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
Questionnaire.item.enableWhen.answer[x] C 1..1 Value for question comparison based on operator
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.enableWhen.answer[x].answerBoolean boolean
Questionnaire.item.enableWhen.answer[x].answerDecimal decimal
Questionnaire.item.enableWhen.answer[x].answerInteger integer
Questionnaire.item.enableWhen.answer[x].answerDate date
Questionnaire.item.enableWhen.answer[x].answerDateTime dateTime
Questionnaire.item.enableWhen.answer[x].answerTime time
Questionnaire.item.enableWhen.answer[x].answerString string
Questionnaire.item.enableWhen.answer[x].answerCoding Coding
Questionnaire.item.enableWhen.answer[x].answerQuantity Quantity
Questionnaire.item.enableWhen.answer[x].answerReference Reference(Resource)
Questionnaire.item.enableBehavior C 0..1 code all | any
Binding: EnableWhenBehavior (required): Controls how multiple enableWhen values are interpreted - whether all or any must be true.
Questionnaire.item.required This element must be supported. C 0..1 boolean Whether the item must be included in data results
Questionnaire.item.repeats This element must be supported. C 0..1 boolean Whether the item may repeat
Questionnaire.item.readOnly This element must be supported. C 0..1 boolean Don't allow human editing
Questionnaire.item.maxLength This element must be supported. C 0..1 integer No more than this many characters
Questionnaire.item.answerValueSet This element must be supported. C 0..1 canonical(SDC ValueSet) Valueset containing permitted answers
Questionnaire.item.answerOption This element must be supported. C 0..* BackboneElement Permitted answer
Questionnaire.item.answerOption.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.answerOption.extension 0..* Extension Additional content defined by implementations
Questionnaire.item.answerOption.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.answerOption.value[x] 1..1 Answer value
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.answerOption.value[x].valueInteger integer
Questionnaire.item.answerOption.value[x].valueDate date
Questionnaire.item.answerOption.value[x].valueTime time
Questionnaire.item.answerOption.value[x].valueString string
Questionnaire.item.answerOption.value[x].valueCoding Coding
Questionnaire.item.answerOption.value[x].valueReference Reference(Resource)
Questionnaire.item.answerOption.initialSelected 0..1 boolean Whether option is selected by default
Questionnaire.item.initial This element must be supported. C 0..* BackboneElement Initial value(s) when item is first rendered
Questionnaire.item.initial.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.initial.extension 0..* Extension Additional content defined by implementations
Questionnaire.item.initial.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.initial.value[x] This element must be supported. 1..1 Actual value for initializing the question
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.initial.value[x].valueBoolean boolean
Questionnaire.item.initial.value[x].valueDecimal decimal
Questionnaire.item.initial.value[x].valueInteger integer
Questionnaire.item.initial.value[x].valueDate date
Questionnaire.item.initial.value[x].valueDateTime dateTime
Questionnaire.item.initial.value[x].valueTime time
Questionnaire.item.initial.value[x].valueString string
Questionnaire.item.initial.value[x].valueUri uri
Questionnaire.item.initial.value[x].valueAttachment Attachment
Questionnaire.item.initial.value[x].valueCoding Coding
Questionnaire.item.initial.value[x].valueQuantity Quantity
Questionnaire.item.initial.value[x].valueReference Reference(Resource)
Questionnaire.item.item This element must be supported. C 0..* See item (Questionnaire) Nested questionnaire items

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Questionnaire.language Base preferred Common Languages 📦4.0.1 FHIR Std.
Questionnaire.status Base required PublicationStatus 📍4.0.1 FHIR Std.
Questionnaire.subjectType Base required ResourceType 📍4.0.1 FHIR Std.
Questionnaire.jurisdiction Base extensible Jurisdiction 📦4.0.1 FHIR Std.
Questionnaire.code Base example Questionnaire Question Codes 📦4.0.1 FHIR Std.
Questionnaire.item.extension:itemControl.​value[x] Base extensible OHH Questionnaire Item Control Value Set 📦0.1.0 This IG
Questionnaire.item.code Base example Questionnaire Question Codes 📦4.0.1 FHIR Std.
Questionnaire.item.type Base required QuestionnaireItemType 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​operator Base required QuestionnaireItemOperator 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​answer[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.enableBehavior Base required EnableWhenBehavior 📍4.0.1 FHIR Std.
Questionnaire.item.answerOption.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.initial.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
dom-2 error Questionnaire If the resource is contained in another resource, it SHALL NOT contain nested Resources contained.contained.empty()
dom-3 error Questionnaire If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a security label contained.meta.security.empty()
dom-6 best practice Questionnaire A resource should have narrative for robust management text.`div`.exists()
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
entry-mode-allowed error Questionnaire.extension:entryMode entryMode must be prior-edit or random (value as code).matches('^(prior-edit|random)$')
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()
que-0 warning Questionnaire Name should be usable as an identifier for the module by machine processing applications such as code generation name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1 error Questionnaire.item Group items must have nested items, display items cannot have nested items (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2 error Questionnaire The link ids for groups and questions must be unique within the questionnaire descendants().linkId.isDistinct()
que-3 error Questionnaire.item Display items cannot have a "code" asserted type!='display' or code.empty()
que-4 error Questionnaire.item A question cannot have both answerOption and answerValueSet answerOption.empty() or answerValueSet.empty()
que-5 error Questionnaire.item Only 'choice' and 'open-choice' items can have answerValueSet (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6 error Questionnaire.item Required and repeat aren't permitted for display items type!='display' or (required.empty() and repeats.empty())
que-7 error Questionnaire.item.enableWhen If the operator is 'exists', the value must be a boolean operator = 'exists' implies (answer is Boolean)
que-8 error Questionnaire.item Initial values can't be specified for groups or display items (type!='group' and type!='display') or initial.empty()
que-9 error Questionnaire.item Read-only can't be specified for "display" items type!='display' or readOnly.empty()
que-10 error Questionnaire.item Maximum length can only be declared for simple question types (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11 error Questionnaire.item If one or more answerOption is present, initial[x] must be missing answerOption.empty() or initial.empty()
que-12 error Questionnaire.item If there are more than one enableWhen, enableBehavior must be specified enableWhen.count() > 2 implies enableBehavior.exists()
que-13 error Questionnaire.item Can only have multiple initial values for repeating items repeats=true or initial.count() <= 1
sdc-1 error Questionnaire.item An item cannot have an answerExpression if answerOption or answerValueSet is already present. extension('http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-answerExpression').empty().not() implies (answerOption.empty() and answerValueSet.empty())
sdc-questionnaire-performerTypePattern error Questionnaire.extension:performerType PerformerType must be either Patient or Practitioner (value as code).matches('^(Patient|Practitioner)$')
slider-choiceOrientation error Questionnaire.item The questionnaire-choiceOrientation extension must be present in slider questions. extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').exists().not() or (extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').first().value as CodeableConcept).coding.first().code != 'slider' or extension.where(url ='http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation').exists()

Differential View

This structure is derived from SDCBaseQuestionnaire

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Questionnaire 0..* SDCBaseQuestionnaire A structured set of questions
Questionnaire.id This element must be supported. 1..1 id Logical id of this artifact
Questionnaire.language This element must be supported. 1..1 code Language of the resource content
Questionnaire.extension 1..* Extension Extension
Questionnaire.Slices for extension Content/Rules for all slices
Questionnaire.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.Slices for extension.extension:performerType C 0..* PerformerTypeExtension Resource that can record answers to this Questionnaire
Constraints: sdc-questionnaire-performerTypePattern
Questionnaire.Slices for extension.extension:entryMode This element must be supported. C 1..1 code sequential | prior-edit | random
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-entryMode
Binding: Questionnaire Entry Mode (required): Entry modes when completing a questionnaire
Constraints: entry-mode-allowed
Questionnaire.name 1..1 string Name for this questionnaire (computer friendly)
Questionnaire.title 1..1 string Name for this questionnaire (human friendly)
Questionnaire.status 1..1 code draft | active | retired | unknown
Required Pattern: active (extensions allowed)
Questionnaire.description 1..1 markdown Natural language description of the questionnaire
Questionnaire.item C 0..* BackboneElement Questions and sections within the Questionnaire
Constraints: slider-choiceOrientation
Questionnaire.item.Slices for extension Content/Rules for all slices
Questionnaire.item.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.item.Slices for extension.extension:itemControl 0..1 (Complex) E.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
URL: http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
Questionnaire.item.Slices for extension.extension:itemControl.value[x] 1..1 CodeableConcept Value of extension
Binding: OHH Questionnaire Item Control Value Set (extensible)

doco Documentation for this format

Terminology Bindings (Differential)

Path Status Usage ValueSet Version Source
Questionnaire.item.extension:itemControl.​value[x] Base extensible OHH Questionnaire Item Control Value Set 📦0.1.0 This IG

Constraints

Id Grade Path(s) Description Expression
entry-mode-allowed error Questionnaire.extension:entryMode entryMode must be prior-edit or random (value as code).matches('^(prior-edit|random)$')
sdc-questionnaire-performerTypePattern error Questionnaire.extension:performerType PerformerType must be either Patient or Practitioner (value as code).matches('^(Patient|Practitioner)$')
slider-choiceOrientation error Questionnaire.item The questionnaire-choiceOrientation extension must be present in slider questions. extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').exists().not() or (extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').first().value as CodeableConcept).coding.first().code != 'slider' or extension.where(url ='http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation').exists()

Key Elements View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Questionnaire C 0..* SDCBaseQuestionnaire A structured set of questions
Constraints: que-0, que-2
Questionnaire.id This element must be supported. This element is included in summaries. 1..1 id Logical id of this artifact
Questionnaire.implicitRules This element is a modifier element. This element is included in summaries. 0..1 uri A set of rules under which this content was created
Questionnaire.language This element must be supported. 1..1 code Language of the resource content
Binding: CommonLanguages (preferred): A human language.
Additional BindingsPurpose
AllLanguages Max Binding
Questionnaire.Slices for extension 1..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Questionnaire.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.Slices for extension.extension:performerType This element must be supported. C 0..* code Resource that can record answers to this Questionnaire
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-performerType
Binding: Questionnaire Performer Type (required): Resources that can record answers to a questionnaire.
Constraints: sdc-questionnaire-performerTypePattern
Questionnaire.Slices for extension.extension:assemble-expectation This element must be supported. 0..1 code Questionnaire is modular
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-assemble-expectation
Binding: Questionnaire Assemble Expectation (required)
Questionnaire.Slices for extension.extension:entryMode This element must be supported. C 1..1 code sequential | prior-edit | random
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-entryMode
Binding: Questionnaire Entry Mode (required): Entry modes when completing a questionnaire
Constraints: entry-mode-allowed
Questionnaire.modifierExtension This element is a modifier element. 0..* Extension Extensions that cannot be ignored
Questionnaire.url This element must be supported. This element is included in summaries. 1..1 uri Canonical identifier for this questionnaire, represented as a URI (globally unique)
Questionnaire.version This element must be supported. This element is included in summaries. 0..1 string Business version of the questionnaire
Questionnaire.name This element is included in summaries. C 1..1 string Name for this questionnaire (computer friendly)
Questionnaire.title This element must be supported. This element is included in summaries. 1..1 string Name for this questionnaire (human friendly)
Questionnaire.status This element is a modifier element. This element must be supported. This element is included in summaries. 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.
Required Pattern: active (extensions allowed)
Questionnaire.subjectType This element must be supported. This element is included in summaries. 0..* code Resource that can be subject of QuestionnaireResponse
Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR.
Questionnaire.description 1..1 markdown Natural language description of the questionnaire
Questionnaire.item This element must be supported. C 0..* BackboneElement Questions and sections within the Questionnaire
Constraints: que-1, que-3, que-4, que-5, que-6, que-8, que-9, que-10, que-11, que-12, que-13, sdc-1, slider-choiceOrientation
Questionnaire.item.Slices for extension Content/Rules for all slices
Questionnaire.item.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.item.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.item.Slices for extension.extension:itemControl 0..1 (Complex) E.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
URL: http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
Questionnaire.item.Slices for extension.extension:itemControl.extension 0..0 Extension
Slice: Unordered, Open by value:url
Questionnaire.item.Slices for extension.extension:itemControl.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl"
Questionnaire.item.Slices for extension.extension:itemControl.value[x] 1..1 CodeableConcept Value of extension
Binding: OHH Questionnaire Item Control Value Set (extensible)
Questionnaire.item.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.linkId This element must be supported. 1..1 string Unique id for item in questionnaire
Questionnaire.item.prefix This element must be supported. 0..1 string E.g. "1(a)", "2.5.3"
Questionnaire.item.text This element must be supported. 0..1 string Primary text for the item
Questionnaire.item.type This element must be supported. 1..1 code group | display | boolean | decimal | integer | date | dateTime +
Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
Questionnaire.item.enableWhen This element is a modifier element. C 0..* BackboneElement Only allow data when
Constraints: que-7
Questionnaire.item.enableWhen.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.enableWhen.question 1..1 string Question that determines whether item is enabled
Questionnaire.item.enableWhen.operator 1..1 code exists | = | != | > | < | >= | <=
Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
Questionnaire.item.enableWhen.answer[x] C 1..1 Value for question comparison based on operator
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.enableWhen.answer[x].answerBoolean boolean
Questionnaire.item.enableWhen.answer[x].answerDecimal decimal
Questionnaire.item.enableWhen.answer[x].answerInteger integer
Questionnaire.item.enableWhen.answer[x].answerDate date
Questionnaire.item.enableWhen.answer[x].answerDateTime dateTime
Questionnaire.item.enableWhen.answer[x].answerTime time
Questionnaire.item.enableWhen.answer[x].answerString string
Questionnaire.item.enableWhen.answer[x].answerCoding Coding
Questionnaire.item.enableWhen.answer[x].answerQuantity Quantity
Questionnaire.item.enableWhen.answer[x].answerReference Reference(Resource)
Questionnaire.item.required This element must be supported. C 0..1 boolean Whether the item must be included in data results
Questionnaire.item.repeats This element must be supported. C 0..1 boolean Whether the item may repeat
Questionnaire.item.readOnly This element must be supported. C 0..1 boolean Don't allow human editing
Questionnaire.item.maxLength This element must be supported. C 0..1 integer No more than this many characters
Questionnaire.item.answerValueSet This element must be supported. C 0..1 canonical(SDC ValueSet) Valueset containing permitted answers
Questionnaire.item.answerOption This element must be supported. C 0..* BackboneElement Permitted answer
Questionnaire.item.answerOption.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.answerOption.value[x] 1..1 Answer value
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.answerOption.value[x].valueInteger integer
Questionnaire.item.answerOption.value[x].valueDate date
Questionnaire.item.answerOption.value[x].valueTime time
Questionnaire.item.answerOption.value[x].valueString string
Questionnaire.item.answerOption.value[x].valueCoding Coding
Questionnaire.item.answerOption.value[x].valueReference Reference(Resource)
Questionnaire.item.initial This element must be supported. C 0..* BackboneElement Initial value(s) when item is first rendered
Questionnaire.item.initial.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.initial.value[x] This element must be supported. 1..1 Actual value for initializing the question
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.initial.value[x].valueBoolean boolean
Questionnaire.item.initial.value[x].valueDecimal decimal
Questionnaire.item.initial.value[x].valueInteger integer
Questionnaire.item.initial.value[x].valueDate date
Questionnaire.item.initial.value[x].valueDateTime dateTime
Questionnaire.item.initial.value[x].valueTime time
Questionnaire.item.initial.value[x].valueString string
Questionnaire.item.initial.value[x].valueUri uri
Questionnaire.item.initial.value[x].valueAttachment Attachment
Questionnaire.item.initial.value[x].valueCoding Coding
Questionnaire.item.initial.value[x].valueQuantity Quantity
Questionnaire.item.initial.value[x].valueReference Reference(Resource)
Questionnaire.item.item This element must be supported. C 0..* See item (Questionnaire) Nested questionnaire items

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Questionnaire.language Base preferred Common Languages 📦4.0.1 FHIR Std.
Questionnaire.status Base required PublicationStatus 📍4.0.1 FHIR Std.
Questionnaire.subjectType Base required ResourceType 📍4.0.1 FHIR Std.
Questionnaire.item.extension:itemControl.​value[x] Base extensible OHH Questionnaire Item Control Value Set 📦0.1.0 This IG
Questionnaire.item.type Base required QuestionnaireItemType 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​operator Base required QuestionnaireItemOperator 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​answer[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.answerOption.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.initial.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
dom-2 error Questionnaire If the resource is contained in another resource, it SHALL NOT contain nested Resources contained.contained.empty()
dom-3 error Questionnaire If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a security label contained.meta.security.empty()
dom-6 best practice Questionnaire A resource should have narrative for robust management text.`div`.exists()
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
entry-mode-allowed error Questionnaire.extension:entryMode entryMode must be prior-edit or random (value as code).matches('^(prior-edit|random)$')
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()
que-0 warning Questionnaire Name should be usable as an identifier for the module by machine processing applications such as code generation name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1 error Questionnaire.item Group items must have nested items, display items cannot have nested items (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2 error Questionnaire The link ids for groups and questions must be unique within the questionnaire descendants().linkId.isDistinct()
que-3 error Questionnaire.item Display items cannot have a "code" asserted type!='display' or code.empty()
que-4 error Questionnaire.item A question cannot have both answerOption and answerValueSet answerOption.empty() or answerValueSet.empty()
que-5 error Questionnaire.item Only 'choice' and 'open-choice' items can have answerValueSet (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6 error Questionnaire.item Required and repeat aren't permitted for display items type!='display' or (required.empty() and repeats.empty())
que-7 error Questionnaire.item.enableWhen If the operator is 'exists', the value must be a boolean operator = 'exists' implies (answer is Boolean)
que-8 error Questionnaire.item Initial values can't be specified for groups or display items (type!='group' and type!='display') or initial.empty()
que-9 error Questionnaire.item Read-only can't be specified for "display" items type!='display' or readOnly.empty()
que-10 error Questionnaire.item Maximum length can only be declared for simple question types (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11 error Questionnaire.item If one or more answerOption is present, initial[x] must be missing answerOption.empty() or initial.empty()
que-12 error Questionnaire.item If there are more than one enableWhen, enableBehavior must be specified enableWhen.count() > 2 implies enableBehavior.exists()
que-13 error Questionnaire.item Can only have multiple initial values for repeating items repeats=true or initial.count() <= 1
sdc-1 error Questionnaire.item An item cannot have an answerExpression if answerOption or answerValueSet is already present. extension('http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-answerExpression').empty().not() implies (answerOption.empty() and answerValueSet.empty())
sdc-questionnaire-performerTypePattern error Questionnaire.extension:performerType PerformerType must be either Patient or Practitioner (value as code).matches('^(Patient|Practitioner)$')
slider-choiceOrientation error Questionnaire.item The questionnaire-choiceOrientation extension must be present in slider questions. extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').exists().not() or (extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').first().value as CodeableConcept).coding.first().code != 'slider' or extension.where(url ='http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation').exists()

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Questionnaire C 0..* SDCBaseQuestionnaire A structured set of questions
Constraints: que-0, que-2
Questionnaire.id This element must be supported. This element is included in summaries. 1..1 id Logical id of this artifact
Questionnaire.meta This element is included in summaries. 0..1 Meta Metadata about the resource
Questionnaire.implicitRules This element is a modifier element. This element is included in summaries. 0..1 uri A set of rules under which this content was created
Questionnaire.language This element must be supported. 1..1 code Language of the resource content
Binding: CommonLanguages (preferred): A human language.
Additional BindingsPurpose
AllLanguages Max Binding
Questionnaire.text 0..1 Narrative Text summary of the resource, for human interpretation
This profile does not constrain the narrative in regard to content, language, or traceability to data elements
Questionnaire.contained 0..* Resource Contained, inline Resources
Questionnaire.Slices for extension 1..* Extension Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Questionnaire.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.Slices for extension.extension:performerType This element must be supported. C 0..* code Resource that can record answers to this Questionnaire
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-performerType
Binding: Questionnaire Performer Type (required): Resources that can record answers to a questionnaire.
Constraints: sdc-questionnaire-performerTypePattern
Questionnaire.Slices for extension.extension:assemble-expectation This element must be supported. 0..1 code Questionnaire is modular
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-assemble-expectation
Binding: Questionnaire Assemble Expectation (required)
Questionnaire.Slices for extension.extension:entryMode This element must be supported. C 1..1 code sequential | prior-edit | random
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-entryMode
Binding: Questionnaire Entry Mode (required): Entry modes when completing a questionnaire
Constraints: entry-mode-allowed
Questionnaire.modifierExtension This element is a modifier element. 0..* Extension Extensions that cannot be ignored
Questionnaire.url This element must be supported. This element is included in summaries. 1..1 uri Canonical identifier for this questionnaire, represented as a URI (globally unique)
Questionnaire.identifier This element is included in summaries. 0..* Identifier Additional identifier for the questionnaire
Questionnaire.version This element must be supported. This element is included in summaries. 0..1 string Business version of the questionnaire
Questionnaire.name This element is included in summaries. C 1..1 string Name for this questionnaire (computer friendly)
Questionnaire.title This element must be supported. This element is included in summaries. 1..1 string Name for this questionnaire (human friendly)
Questionnaire.derivedFrom 0..* canonical(Questionnaire) Instantiates protocol or definition
Questionnaire.status This element is a modifier element. This element must be supported. This element is included in summaries. 1..1 code draft | active | retired | unknown
Binding: PublicationStatus (required): The lifecycle status of an artifact.
Required Pattern: active (extensions allowed)
Questionnaire.experimental This element is included in summaries. 0..1 boolean For testing purposes, not real usage
Questionnaire.subjectType This element must be supported. This element is included in summaries. 0..* code Resource that can be subject of QuestionnaireResponse
Binding: ResourceType (required): One of the resource types defined as part of this version of FHIR.
Questionnaire.date This element is included in summaries. 0..1 dateTime Date last changed
Questionnaire.publisher This element is included in summaries. 0..1 string Name of the publisher (organization or individual)
Questionnaire.contact This element is included in summaries. 0..* ContactDetail Contact details for the publisher
Questionnaire.description 1..1 markdown Natural language description of the questionnaire
Questionnaire.useContext This element is included in summaries. 0..* UsageContext The context that the content is intended to support
Questionnaire.jurisdiction This element is included in summaries. 0..* CodeableConcept Intended jurisdiction for questionnaire (if applicable)
Binding: Jurisdiction ValueSet (extensible): Countries and regions within which this artifact is targeted for use.
Questionnaire.purpose 0..1 markdown Why this questionnaire is defined
Questionnaire.copyright 0..1 markdown Use and/or publishing restrictions
Questionnaire.approvalDate 0..1 date When the questionnaire was approved by publisher
Questionnaire.lastReviewDate 0..1 date When the questionnaire was last reviewed
Questionnaire.effectivePeriod This element is included in summaries. 0..1 Period When the questionnaire is expected to be used
Questionnaire.code This element is included in summaries. 0..* Coding Concept that represents the overall questionnaire
Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
Questionnaire.item This element must be supported. C 0..* BackboneElement Questions and sections within the Questionnaire
Constraints: que-1, que-3, que-4, que-5, que-6, que-8, que-9, que-10, que-11, que-12, que-13, sdc-1, slider-choiceOrientation
Questionnaire.item.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.Slices for extension 0..* Extension Extension
Slice: Unordered, Open by value:url
Questionnaire.item.Slices for extension.extension:designNote 0..1 markdown Design comments
URL: http://hl7.org/fhir/StructureDefinition/designNote
Questionnaire.item.Slices for extension.extension:terminologyServer 0..* url Preferred terminology server
URL: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-preferredTerminologyServer
Questionnaire.item.Slices for extension.extension:itemControl 0..1 (Complex) E.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
URL: http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
Questionnaire.item.Slices for extension.extension:itemControl.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.Slices for extension.extension:itemControl.extension 0..0 Extension
Slice: Unordered, Open by value:url
Questionnaire.item.Slices for extension.extension:itemControl.url 1..1 uri "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl"
Questionnaire.item.Slices for extension.extension:itemControl.value[x] 1..1 CodeableConcept Value of extension
Binding: OHH Questionnaire Item Control Value Set (extensible)
Questionnaire.item.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.linkId This element must be supported. 1..1 string Unique id for item in questionnaire
Questionnaire.item.definition 0..1 uri ElementDefinition - details for the item
Questionnaire.item.code C 0..* Coding Corresponding concept for this item in a terminology
Binding: QuestionnaireQuestionCodes (example): Codes for questionnaires, groups and individual questions.
Questionnaire.item.prefix This element must be supported. 0..1 string E.g. "1(a)", "2.5.3"
Questionnaire.item.text This element must be supported. 0..1 string Primary text for the item
Questionnaire.item.type This element must be supported. 1..1 code group | display | boolean | decimal | integer | date | dateTime +
Binding: QuestionnaireItemType (required): Distinguishes groups from questions and display text and indicates data type for questions.
Questionnaire.item.enableWhen This element is a modifier element. C 0..* BackboneElement Only allow data when
Constraints: que-7
Questionnaire.item.enableWhen.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.enableWhen.extension 0..* Extension Additional content defined by implementations
Questionnaire.item.enableWhen.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.enableWhen.question 1..1 string Question that determines whether item is enabled
Questionnaire.item.enableWhen.operator 1..1 code exists | = | != | > | < | >= | <=
Binding: QuestionnaireItemOperator (required): The criteria by which a question is enabled.
Questionnaire.item.enableWhen.answer[x] C 1..1 Value for question comparison based on operator
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.enableWhen.answer[x].answerBoolean boolean
Questionnaire.item.enableWhen.answer[x].answerDecimal decimal
Questionnaire.item.enableWhen.answer[x].answerInteger integer
Questionnaire.item.enableWhen.answer[x].answerDate date
Questionnaire.item.enableWhen.answer[x].answerDateTime dateTime
Questionnaire.item.enableWhen.answer[x].answerTime time
Questionnaire.item.enableWhen.answer[x].answerString string
Questionnaire.item.enableWhen.answer[x].answerCoding Coding
Questionnaire.item.enableWhen.answer[x].answerQuantity Quantity
Questionnaire.item.enableWhen.answer[x].answerReference Reference(Resource)
Questionnaire.item.enableBehavior C 0..1 code all | any
Binding: EnableWhenBehavior (required): Controls how multiple enableWhen values are interpreted - whether all or any must be true.
Questionnaire.item.required This element must be supported. C 0..1 boolean Whether the item must be included in data results
Questionnaire.item.repeats This element must be supported. C 0..1 boolean Whether the item may repeat
Questionnaire.item.readOnly This element must be supported. C 0..1 boolean Don't allow human editing
Questionnaire.item.maxLength This element must be supported. C 0..1 integer No more than this many characters
Questionnaire.item.answerValueSet This element must be supported. C 0..1 canonical(SDC ValueSet) Valueset containing permitted answers
Questionnaire.item.answerOption This element must be supported. C 0..* BackboneElement Permitted answer
Questionnaire.item.answerOption.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.answerOption.extension 0..* Extension Additional content defined by implementations
Questionnaire.item.answerOption.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.answerOption.value[x] 1..1 Answer value
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.answerOption.value[x].valueInteger integer
Questionnaire.item.answerOption.value[x].valueDate date
Questionnaire.item.answerOption.value[x].valueTime time
Questionnaire.item.answerOption.value[x].valueString string
Questionnaire.item.answerOption.value[x].valueCoding Coding
Questionnaire.item.answerOption.value[x].valueReference Reference(Resource)
Questionnaire.item.answerOption.initialSelected 0..1 boolean Whether option is selected by default
Questionnaire.item.initial This element must be supported. C 0..* BackboneElement Initial value(s) when item is first rendered
Questionnaire.item.initial.id 0..1 string Unique id for inter-element referencing
Questionnaire.item.initial.extension 0..* Extension Additional content defined by implementations
Questionnaire.item.initial.modifierExtension This element is a modifier element. This element is included in summaries. 0..* Extension Extensions that cannot be ignored even if unrecognized
Questionnaire.item.initial.value[x] This element must be supported. 1..1 Actual value for initializing the question
Binding: QuestionnaireAnswerCodes (example): Allowed values to answer questions.
Questionnaire.item.initial.value[x].valueBoolean boolean
Questionnaire.item.initial.value[x].valueDecimal decimal
Questionnaire.item.initial.value[x].valueInteger integer
Questionnaire.item.initial.value[x].valueDate date
Questionnaire.item.initial.value[x].valueDateTime dateTime
Questionnaire.item.initial.value[x].valueTime time
Questionnaire.item.initial.value[x].valueString string
Questionnaire.item.initial.value[x].valueUri uri
Questionnaire.item.initial.value[x].valueAttachment Attachment
Questionnaire.item.initial.value[x].valueCoding Coding
Questionnaire.item.initial.value[x].valueQuantity Quantity
Questionnaire.item.initial.value[x].valueReference Reference(Resource)
Questionnaire.item.item This element must be supported. C 0..* See item (Questionnaire) Nested questionnaire items

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Questionnaire.language Base preferred Common Languages 📦4.0.1 FHIR Std.
Questionnaire.status Base required PublicationStatus 📍4.0.1 FHIR Std.
Questionnaire.subjectType Base required ResourceType 📍4.0.1 FHIR Std.
Questionnaire.jurisdiction Base extensible Jurisdiction 📦4.0.1 FHIR Std.
Questionnaire.code Base example Questionnaire Question Codes 📦4.0.1 FHIR Std.
Questionnaire.item.extension:itemControl.​value[x] Base extensible OHH Questionnaire Item Control Value Set 📦0.1.0 This IG
Questionnaire.item.code Base example Questionnaire Question Codes 📦4.0.1 FHIR Std.
Questionnaire.item.type Base required QuestionnaireItemType 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​operator Base required QuestionnaireItemOperator 📍4.0.1 FHIR Std.
Questionnaire.item.enableWhen.​answer[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.enableBehavior Base required EnableWhenBehavior 📍4.0.1 FHIR Std.
Questionnaire.item.answerOption.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.
Questionnaire.item.initial.​value[x] Base example Questionnaire Answer Codes 📦4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
dom-2 error Questionnaire If the resource is contained in another resource, it SHALL NOT contain nested Resources contained.contained.empty()
dom-3 error Questionnaire If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5 error Questionnaire If a resource is contained in another resource, it SHALL NOT have a security label contained.meta.security.empty()
dom-6 best practice Questionnaire A resource should have narrative for robust management text.`div`.exists()
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
entry-mode-allowed error Questionnaire.extension:entryMode entryMode must be prior-edit or random (value as code).matches('^(prior-edit|random)$')
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()
que-0 warning Questionnaire Name should be usable as an identifier for the module by machine processing applications such as code generation name.matches('[A-Z]([A-Za-z0-9_]){0,254}')
que-1 error Questionnaire.item Group items must have nested items, display items cannot have nested items (type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty())
que-2 error Questionnaire The link ids for groups and questions must be unique within the questionnaire descendants().linkId.isDistinct()
que-3 error Questionnaire.item Display items cannot have a "code" asserted type!='display' or code.empty()
que-4 error Questionnaire.item A question cannot have both answerOption and answerValueSet answerOption.empty() or answerValueSet.empty()
que-5 error Questionnaire.item Only 'choice' and 'open-choice' items can have answerValueSet (type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty())
que-6 error Questionnaire.item Required and repeat aren't permitted for display items type!='display' or (required.empty() and repeats.empty())
que-7 error Questionnaire.item.enableWhen If the operator is 'exists', the value must be a boolean operator = 'exists' implies (answer is Boolean)
que-8 error Questionnaire.item Initial values can't be specified for groups or display items (type!='group' and type!='display') or initial.empty()
que-9 error Questionnaire.item Read-only can't be specified for "display" items type!='display' or readOnly.empty()
que-10 error Questionnaire.item Maximum length can only be declared for simple question types (type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty()
que-11 error Questionnaire.item If one or more answerOption is present, initial[x] must be missing answerOption.empty() or initial.empty()
que-12 error Questionnaire.item If there are more than one enableWhen, enableBehavior must be specified enableWhen.count() > 2 implies enableBehavior.exists()
que-13 error Questionnaire.item Can only have multiple initial values for repeating items repeats=true or initial.count() <= 1
sdc-1 error Questionnaire.item An item cannot have an answerExpression if answerOption or answerValueSet is already present. extension('http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-answerExpression').empty().not() implies (answerOption.empty() and answerValueSet.empty())
sdc-questionnaire-performerTypePattern error Questionnaire.extension:performerType PerformerType must be either Patient or Practitioner (value as code).matches('^(Patient|Practitioner)$')
slider-choiceOrientation error Questionnaire.item The questionnaire-choiceOrientation extension must be present in slider questions. extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').exists().not() or (extension.where(url = 'http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl').first().value as CodeableConcept).coding.first().code != 'slider' or extension.where(url ='http://hl7.org/fhir/StructureDefinition/questionnaire-choiceOrientation').exists()

 

Other representations of profile: CSV, Excel, Schematron

Notes:

Formula

We use formulas to calculate results based on previous inputs. Formulas are stored as variables in the questionnaire. To show the result of a formula to the user we have the result type question.

Formulas mostly follow mathjs syntax. There is exactly one exception to this, which is the variables. To clarify which QuestionnaireItem result is used in a formula, the variables used in the formulas will be replaced by the linkId, surrounded by $, of the QuestionnaireItem result that should replace the variable. This linkId may be specified by using the Export label field in the Designer and does not necessarily follow mathjs’s syntax.

Default values for unanswered questions

The answer value of each question referenced in a formula is exposed as a variable extension named after the question’s linkId (normalized to a valid variable name, with _ replaced by -) suffixed with the question’s technical id to guarantee uniqueness. The formula expressions reference these as %`name`.

Choice and numeric questions can define a default value that is used in formula calculations when the question has not been answered. The question’s variable falls back to this value when the item has no answer, using iif(...answer.exists(), ...answer.value, <default>). Questions without an explicit default value fall back, per usage in the formula expression, to the neutral element of the operator their variable binds to (0 for addition and subtraction, 1 for multiplication and division), so an unanswered question does not affect the rest of the calculation. The default value only applies to calculations; it is not an initial answer and is never submitted in the QuestionnaireResponse.