Structured Data Capture
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Structured Data Capture, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 4.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/sdc/ and changes regularly. See the Directory of published versions

Resource Profile: SDCQuestionnaireResponse - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 4

Definitions for the sdc-questionnaireresponse resource profile.

Guidance on how to interpret the contents of this table can be found here

0. QuestionnaireResponse
Definition

Sets expectations for supported capabilities for questionnaire responses for SDC-conformant systems.


A structured set of questions and their answers. The questions are ordered and grouped into coherent subsets, corresponding to the structure of the grouping of the questionnaire being responded to.

ShortStandard Questionnaire ResponseA structured set of questions and their answers
Comments

The QuestionnaireResponse contains enough information about the questions asked and their organization that it can be interpreted somewhat independently from the Questionnaire it is based on. I.e. You don't need access to the Questionnaire in order to extract basic information from a QuestionnaireResponse.

Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesForm, QuestionnaireAnswers, Form Data
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: 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: 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: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
sdcqr-1: Subject SHOULD be present (searching is difficult without subject). Almost all QuestionnaireResponses should be with respect to some sort of subject. (subject.exists())
sdcqr-2: When repeats=true for a group, it'll be represented with multiple items with the same linkId in the QuestionnaireResponse. For a question, it'll be represented by a single item with that linkId with multiple answers. ((QuestionnaireResponse|repeat(answer|item)).select(item.where(answer.value.exists()).linkId.isDistinct()).allTrue())
sdcqr-3: Can either have source or source extension, but not both (source.count() + extension.where(url='http://hl7.org/fhir/5.0/StructureDefinition/extension-QuestionnaireResponse.source').count() <=1)
2. QuestionnaireResponse.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. QuestionnaireResponse.extension:adheresTo
Slice NameadheresTo
Definition

The action represented by this resource has been determined to satisfy the expectations established by the referenced Definition resource.

ShortFollows rules from
Comments

If changes are made to this event record, the determination must be made whether, with the change, the action still complies with the referenced Definition. Revisions may result in adheresTo assertions being removed, or - if the system has an algorithm for determining which targets are appropriate - being added.

Also see the notes in the workflow extensions area for more guidance on this element.

Control0..*
TypeExtension(adheres to) (Extension Type: Choice of: canonical(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), Reference(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), uri)
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. QuestionnaireResponse.extension:adheresTo.extension
Definition

An Extension


May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortExtensionAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..0*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on QuestionnaireResponse.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 8. QuestionnaireResponse.extension:adheresTo.url
    Definition

    Source of the definition for the extension code - a logical name or a URL.

    Shortidentifies the meaning of the extension
    Comments

    The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

    Control1..1
    Typeuri
    Is Modifierfalse
    XML FormatIn the XML format, this property is represented as an attribute.
    Summaryfalse
    Fixed Valuehttp://hl7.org/fhir/StructureDefinition/workflow-adheresTo
    10. QuestionnaireResponse.extension:adheresTo.value[x]
    Definition

    Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).


    Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

    ShortValue of extension
    Control10..1
    This element is affected by the following invariants: ext-1
    TypeChoice of: canonical(ActivityDefinition, PlanDefinition), Reference(ActivityDefinition, PlanDefinition), uri, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. QuestionnaireResponse.extension:triggeredBy
    Slice NametriggeredBy
    Definition

    This resource came into being as a result of expectations set in the referenced Definition resource. I.e. This resource represents a 'step' dictated within the protocol/order set/etc.

    ShortCreated because of following
    Comments

    See the notes in the workflow extensions area for more guidance on this element.

    Control0..1
    TypeExtension(Triggered by) (Extension Type: Choice of: canonical(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), Reference(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), uri)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    14. QuestionnaireResponse.extension:triggeredBy.extension
    Definition

    An Extension


    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

    ShortExtensionAdditional content defined by implementations
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..0*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on QuestionnaireResponse.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 16. QuestionnaireResponse.extension:triggeredBy.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://hl7.org/fhir/StructureDefinition/workflow-triggeredBy
      18. QuestionnaireResponse.extension:triggeredBy.value[x]
      Definition

      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortValue of extension
      Control10..1
      This element is affected by the following invariants: ext-1
      TypeChoice of: canonical(ActivityDefinition, PlanDefinition), Reference(ActivityDefinition, PlanDefinition), uri, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      20. QuestionnaireResponse.extension:signature
      Slice Namesignature
      Definition

      Represents a wet or electronic signature for either the form overall or for the question or item it's associated with.

      ShortA signature attesting to the content
      Control0..*
      TypeExtension(QuestionnaireResponse Signature) (Extension Type: Signature)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      22. QuestionnaireResponse.extension:completionMode
      Slice NamecompletionMode
      Definition

      Indicates how the individual completing the QuestionnaireResponse provided their responses.

      ShortE.g. Verbal, written, electronic
      Control0..1
      TypeExtension(QuestionnaireResponse Completion Mode) (Extension Type: CodeableConcept)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      24. QuestionnaireResponse.extension:source
      Slice Namesource
      Definition

      Optional Extension Element - found in all resources.

      ShortOptional Extensions Element
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Extension Definition for QuestionnaireResponse.source for Version 5.0) (Extension Type: Reference(Device, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson))
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      26. QuestionnaireResponse.extension:source.extension
      Definition

      An Extension


      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

      ShortExtensionAdditional content defined by implementations
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..0*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on QuestionnaireResponse.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 28. QuestionnaireResponse.extension:source.url
        Definition

        Source of the definition for the extension code - a logical name or a URL.

        Shortidentifies the meaning of the extension
        Comments

        The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

        Control1..1
        Typeuri
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-QuestionnaireResponse.source
        30. QuestionnaireResponse.extension:source.value[x]
        Definition

        Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

        ShortValue of extension
        Control10..1
        TypeReference(Device, Organization), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        32. QuestionnaireResponse.modifierExtension
        Definition

        May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

        ShortExtensions that cannot be ignored
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
        Summaryfalse
        Requirements

        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        34. QuestionnaireResponse.identifier
        Definition

        A business identifier assigned to a particular completed (or partially completed) questionnaire.

        ShortUnique id for this set of answers
        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..1
        TypeIdentifier
        Is Modifierfalse
        Must Supporttrue
        Summarytrue
        Requirements

        Used for tracking, registration and other business purposes.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        36. QuestionnaireResponse.questionnaire
        Definition

        The Questionnaire that defines and organizes the questions for which answers are being provided.

        ShortForm being answered
        Comments

        For SDC, this SHALL be the version-specific URL of the form as hosted on the Form Manager.


        If a QuestionnaireResponse references a Questionnaire, then the QuestionnaireResponse structure must be consistent with the Questionnaire (i.e. questions must be organized into the same groups, nested questions must still be nested, etc.).

        Control10..1
        Typecanonical(SDC Base Questionnaire, Questionnaire)
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summarytrue
        Requirements

        Needed to allow editing of the questionnaire response in a manner that enforces the constraints of the original form.

        Alternate NamesForm
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        38. QuestionnaireResponse.questionnaire.extension
        Definition

        An Extension


        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

        ShortExtensionAdditional content defined by implementations
        Comments

        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

        Control0..*
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Alternate Namesextensions, user content
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on QuestionnaireResponse.questionnaire.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 40. QuestionnaireResponse.questionnaire.extension:questionnaireDisplay
          Slice NamequestionnaireDisplay
          Definition

          The title or other name to display when referencing a resource by canonical URL.

          ShortDisplay name for canonical reference
          Comments

          This SHALL be the title of the Questionnaire at the time the QuestionnaireResponse was originally authored.

          Control0..1
          TypeExtension(Display Name) (Extension Type: string)
          Is Modifierfalse
          Must Supporttrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          42. QuestionnaireResponse.status
          Definition

          The position of the questionnaire response within its overall lifecycle.

          Shortin-progress | completed | amended | entered-in-error | stopped
          Comments

          This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

          Control1..1
          BindingThe codes SHALL be taken from QuestionnaireResponseStatushttp://hl7.org/fhir/ValueSet/questionnaire-answers-status|4.0.1
          (required to http://hl7.org/fhir/ValueSet/questionnaire-answers-status|4.0.1)

          Lifecycle status of the questionnaire response.

          Typecode
          Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Requirements

          The information on Questionnaire resources may possibly be gathered during multiple sessions and altered after considered being finished.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          44. QuestionnaireResponse.subject
          Definition

          The subject of the questionnaire response. This could be a patient, organization, practitioner, device, etc. This is who/what the answers apply to, but is not necessarily the source of information.

          ShortThe subject of the questions
          Comments

          If the Questionnaire declared a subjectType, the resource pointed to by this element must be an instance of one of the listed types. If subject is omitted - because the QuestionnaireResponse is not associated with a specific subject, ensure that QuestionnaireRsponse.identifier is present or the QuestionnaireResponse is referenced somewhere (e.g. Task.output, Composition.section.entry, etc.) to allow tracking and retrieval of the QuestionnaireResponse


          If the Questionnaire declared a subjectType, the resource pointed to by this element must be an instance of one of the listed types.

          Control0..1
          TypeReference(Resource)
          Is Modifierfalse
          Must Supporttrue
          Summarytrue
          Requirements

          Allows linking the answers to the individual the answers describe. May also affect access control.

          Alternate NamesPatient, Focus
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          46. QuestionnaireResponse.authored
          Definition

          Identifies when this version of the answer set was created. Changes whenever the answers are updated.


          The date and/or time that this set of answers were last changed.

          ShortDate the answers were gathered
          Comments

          May be different from the lastUpdateTime of the resource itself, because that reflects when the data was known to the server, not when the data was captured.

          This element is optional to allow for systems that might not know the value, however it SHOULD be populated if possible.

          Control10..1
          TypedateTime
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summarytrue
          Requirements

          Clinicians need to be able to check the date that the information in the questionnaire was collected, to derive the context of the answers.

          Alternate NamesDate Created, Date published, Date Issued, Date updated
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          48. QuestionnaireResponse.author
          Definition

          Person who received the answers to the questions in the QuestionnaireResponse and recorded them in the system.

          ShortPerson who received and recorded the answers
          Comments

          Mapping a subject's answers to multiple choice options and determining what to put in the textual answer is a matter of interpretation. Authoring by device would indicate that some portion of the questionnaire had been auto-populated.

          Control0..1
          TypeReference(Device, Practitioner, PractitionerRole, Patient, RelatedPerson, Organization)
          Is Modifierfalse
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          Summarytrue
          Requirements

          Need to know who interpreted the subject's answers to the questions in the questionnaire, and selected the appropriate options for answers.

          Alternate NamesLaboratory, Service, Practitioner, Department, Company, Performer
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          50. QuestionnaireResponse.item
          Definition

          A group or question item from the original questionnaire for which answers are provided.

          ShortGroups and questions
          Comments

          Groups cannot have answers and therefore must nest directly within item. When dealing with questions, nesting must occur within each answer because some questions may have multiple answers (and the nesting occurs for each answer).

          Control0..*
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          qrs-1: Nested item can't be beneath both item and answer ((answer.exists() and item.exists()).not())
          qrs-2: Repeated answers are combined in the answers array of a single item (repeat(answer|item).select(item.where(answer.value.exists()).linkId.isDistinct()).allTrue())
          qrs-1: Nested item can't be beneath both item and answer ((answer.exists() and item.exists()).not())
          52. QuestionnaireResponse.item.extension:itemMedia
          Slice NameitemMedia
          Definition

          Media to render/make available as an accompaniment to the question being asked

          ShortMedia to display
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Item Media) (Extension Type: Attachment)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          54. QuestionnaireResponse.item.extension:ItemSignature
          Slice NameItemSignature
          Definition

          Represents a wet or electronic signature for either the form overall or for the question or item it's associated with.

          ShortA signature attesting to the content
          Control0..*
          TypeExtension(QuestionnaireResponse Signature) (Extension Type: Signature)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          56. QuestionnaireResponse.item.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          58. QuestionnaireResponse.item.linkId
          Definition

          The item from the Questionnaire that corresponds to this item in the QuestionnaireResponse resource.

          ShortPointer to specific item from Questionnaire
          Control1..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summaryfalse
          Requirements

          Items can repeat in the answers, so a direct 1..1 correspondence by position might not exist - requiring correspondence by identifier.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          60. QuestionnaireResponse.item.text
          Definition

          Text that is displayed above the contents of the group or as the text of the question being answered.

          ShortName for group or question text
          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summaryfalse
          Requirements

          Allows the questionnaire response to be read without access to the questionnaire.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          62. QuestionnaireResponse.item.answer
          Definition

          The respondent's answer(s) to the question.

          ShortThe response(s) to the question
          Comments

          The value is nested because we cannot have a repeating structure that has variable type.

          Control0..*
          TypeBackboneElement
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          64. QuestionnaireResponse.item.answer.extension:itemAnswerMedia
          Slice NameitemAnswerMedia
          Definition

          Media to render/make available as an accompaniment to a specific answer option

          ShortAnswer Media to display
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Item Answer Media) (Extension Type: Attachment)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          66. QuestionnaireResponse.item.answer.extension:itemWeight
          Slice NameitemWeight
          Definition

          A numeric value that allows the comparison (less than, greater than) or other numerical manipulation of a concept (e.g. Adding up components of a score). Scores are usually a whole number, but occasionally decimals are encountered in scores. In the CodeSystem and ValueSet resources, the item weight is represented using the itemWeight property

          ShortAssigned Ordinal Value
          Comments

          Inclusion of weights in QRs can increase performance when calculating based on weights.

          Control0..1
          TypeExtension(Item Weight) (Extension Type: decimal)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          68. QuestionnaireResponse.item.answer.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          70. QuestionnaireResponse.item.answer.value[x]
          Definition

          The answer (or one of the answers) provided by the respondent to the question.

          ShortSingle-valued answer to the question
          Comments

          More complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type. Additional complex types can be introduced through extensions. Must match the datatype specified by Questionnaire.item.type in the corresponding Questionnaire.

          Control0..1
          BindingFor example codes, see QuestionnaireAnswerCodeshttp://hl7.org/fhir/ValueSet/questionnaire-answers
          (example to http://hl7.org/fhir/ValueSet/questionnaire-answers)

          Code indicating the response provided for a question.

          TypeChoice of: boolean, decimal, integer, date, dateTime, time, string, uri, Attachment, Coding, Quantity, Reference(Resource)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Must Support TypesNo must-support rules about the choice of types/profiles
          Summaryfalse
          Requirements

          Ability to retain a single-valued answer to a question.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          72. QuestionnaireResponse.item.answer.item
          Definition

          Nested groups and/or questions found within this particular answer.

          ShortNested groups and questions
          Control0..*
          TypeSeettp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Requirements

          It is useful to have "sub-questions", questions which normally appear when certain answers are given and which collect additional details.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          74. QuestionnaireResponse.item.item
          Definition

          Questions or sub-groups nested beneath a question or group.

          ShortNested questionnaire response items
          Control0..*
          TypeSeettp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
          Is Modifierfalse
          Must Supporttrue
          Summaryfalse
          Requirements

          Reports can consist of complex nested groups.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

          Guidance on how to interpret the contents of this table can be found here

          0. QuestionnaireResponse
          ShortStandard Questionnaire Response
          2. QuestionnaireResponse.questionnaire
          Comments

          For SDC, this SHALL be the version-specific URL of the form as hosted on the Form Manager.

          Typecanonical(SDC Base Questionnaire)
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          4. QuestionnaireResponse.questionnaire.extension
          SlicingThis element introduces a set of slices on QuestionnaireResponse.questionnaire.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 6. QuestionnaireResponse.questionnaire.extension:questionnaireDisplay
            Slice NamequestionnaireDisplay
            Comments

            This SHALL be the title of the Questionnaire at the time the QuestionnaireResponse was originally authored.

            Control0..1
            TypeExtension(Display Name) (Extension Type: string)
            Must Supporttrue

            Guidance on how to interpret the contents of this table can be found here

            0. QuestionnaireResponse
            Definition

            Sets expectations for supported capabilities for questionnaire responses for SDC-conformant systems.

            ShortStandard Questionnaire Response
            Comments

            The QuestionnaireResponse contains enough information about the questions asked and their organization that it can be interpreted somewhat independently from the Questionnaire it is based on. I.e. You don't need access to the Questionnaire in order to extract basic information from a QuestionnaireResponse.

            Control0..*
            Is Modifierfalse
            Summaryfalse
            Alternate NamesForm, QuestionnaireAnswers, Form Data
            Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
            dom-3: 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: 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: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
            dom-6: A resource should have narrative for robust management (text.`div`.exists())
            sdcqr-1: Subject SHOULD be present (searching is difficult without subject). Almost all QuestionnaireResponses should be with respect to some sort of subject. (subject.exists())
            sdcqr-2: When repeats=true for a group, it'll be represented with multiple items with the same linkId in the QuestionnaireResponse. For a question, it'll be represented by a single item with that linkId with multiple answers. ((QuestionnaireResponse|repeat(answer|item)).select(item.where(answer.value.exists()).linkId.isDistinct()).allTrue())
            sdcqr-3: Can either have source or source extension, but not both (source.count() + extension.where(url='http://hl7.org/fhir/5.0/StructureDefinition/extension-QuestionnaireResponse.source').count() <=1)
            2. QuestionnaireResponse.id
            Definition

            The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

            ShortLogical id of this artifact
            Comments

            The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

            Control0..1
            Typeid
            Is Modifierfalse
            Summarytrue
            4. QuestionnaireResponse.meta
            Definition

            The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

            ShortMetadata about the resource
            Control0..1
            TypeMeta
            Is Modifierfalse
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            6. QuestionnaireResponse.implicitRules
            Definition

            A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

            ShortA set of rules under which this content was created
            Comments

            Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

            Control0..1
            Typeuri
            Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            8. QuestionnaireResponse.language
            Definition

            The base language in which the resource is written.

            ShortLanguage of the resource content
            Comments

            Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

            Control0..1
            BindingThe codes SHOULD be taken from CommonLanguages
            (preferred to http://hl7.org/fhir/ValueSet/languages)

            A human language.

            Additional BindingsPurpose
            AllLanguagesMax Binding
            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            10. QuestionnaireResponse.text
            Definition

            A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

            ShortText summary of the resource, for human interpretation
            Comments

            Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

            Control0..1
            TypeNarrative
            Is Modifierfalse
            Summaryfalse
            Alternate Namesnarrative, html, xhtml, display
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            12. QuestionnaireResponse.contained
            Definition

            These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

            ShortContained, inline Resources
            Comments

            This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

            Control0..*
            TypeResource
            Is Modifierfalse
            Summaryfalse
            Alternate Namesinline resources, anonymous resources, contained resources
            14. QuestionnaireResponse.extension
            Definition

            An Extension

            ShortExtension
            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            SlicingThis element introduces a set of slices on QuestionnaireResponse.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 16. QuestionnaireResponse.extension:adheresTo
              Slice NameadheresTo
              Definition

              The action represented by this resource has been determined to satisfy the expectations established by the referenced Definition resource.

              ShortFollows rules from
              Comments

              If changes are made to this event record, the determination must be made whether, with the change, the action still complies with the referenced Definition. Revisions may result in adheresTo assertions being removed, or - if the system has an algorithm for determining which targets are appropriate - being added.

              Also see the notes in the workflow extensions area for more guidance on this element.

              Control0..*
              TypeExtension(adheres to) (Extension Type: Choice of: canonical(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), Reference(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), uri)
              Is Modifierfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              18. QuestionnaireResponse.extension:adheresTo.id
              Definition

              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

              ShortUnique id for inter-element referencing
              Control0..1
              This element is affected by the following invariants: ele-1
              Typeid
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              20. QuestionnaireResponse.extension:adheresTo.extension
              Definition

              An Extension

              ShortExtension
              Control0..0
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on QuestionnaireResponse.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 22. QuestionnaireResponse.extension:adheresTo.url
                Definition

                Source of the definition for the extension code - a logical name or a URL.

                Shortidentifies the meaning of the extension
                Comments

                The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                Control1..1
                Typeuri
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                Fixed Valuehttp://hl7.org/fhir/StructureDefinition/workflow-adheresTo
                24. QuestionnaireResponse.extension:adheresTo.value[x]
                Definition

                Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                ShortValue of extension
                Control1..1
                This element is affected by the following invariants: ext-1
                TypeChoice of: canonical(ActivityDefinition, PlanDefinition), Reference(ActivityDefinition, PlanDefinition), uri
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                26. QuestionnaireResponse.extension:triggeredBy
                Slice NametriggeredBy
                Definition

                This resource came into being as a result of expectations set in the referenced Definition resource. I.e. This resource represents a 'step' dictated within the protocol/order set/etc.

                ShortCreated because of following
                Comments

                See the notes in the workflow extensions area for more guidance on this element.

                Control0..1
                TypeExtension(Triggered by) (Extension Type: Choice of: canonical(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), Reference(ActivityDefinition, Measure, OperationDefinition, PlanDefinition, Questionnaire), uri)
                Is Modifierfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                28. QuestionnaireResponse.extension:triggeredBy.id
                Definition

                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                ShortUnique id for inter-element referencing
                Control0..1
                This element is affected by the following invariants: ele-1
                Typeid
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                30. QuestionnaireResponse.extension:triggeredBy.extension
                Definition

                An Extension

                ShortExtension
                Control0..0
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                SlicingThis element introduces a set of slices on QuestionnaireResponse.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 32. QuestionnaireResponse.extension:triggeredBy.url
                  Definition

                  Source of the definition for the extension code - a logical name or a URL.

                  Shortidentifies the meaning of the extension
                  Comments

                  The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                  Control1..1
                  Typeuri
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  Fixed Valuehttp://hl7.org/fhir/StructureDefinition/workflow-triggeredBy
                  34. QuestionnaireResponse.extension:triggeredBy.value[x]
                  Definition

                  Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                  ShortValue of extension
                  Control1..1
                  This element is affected by the following invariants: ext-1
                  TypeChoice of: canonical(ActivityDefinition, PlanDefinition), Reference(ActivityDefinition, PlanDefinition), uri
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  36. QuestionnaireResponse.extension:signature
                  Slice Namesignature
                  Definition

                  Represents a wet or electronic signature for either the form overall or for the question or item it's associated with.

                  ShortA signature attesting to the content
                  Control0..*
                  TypeExtension(QuestionnaireResponse Signature) (Extension Type: Signature)
                  Is Modifierfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  38. QuestionnaireResponse.extension:completionMode
                  Slice NamecompletionMode
                  Definition

                  Indicates how the individual completing the QuestionnaireResponse provided their responses.

                  ShortE.g. Verbal, written, electronic
                  Control0..1
                  TypeExtension(QuestionnaireResponse Completion Mode) (Extension Type: CodeableConcept)
                  Is Modifierfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  40. QuestionnaireResponse.extension:source
                  Slice Namesource
                  Definition

                  Optional Extension Element - found in all resources.

                  ShortOptional Extensions Element
                  Control0..1
                  This element is affected by the following invariants: ele-1
                  TypeExtension(Extension Definition for QuestionnaireResponse.source for Version 5.0) (Extension Type: Reference(Device, Organization, Patient, Practitioner, PractitionerRole, RelatedPerson))
                  Is Modifierfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  42. QuestionnaireResponse.extension:source.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  44. QuestionnaireResponse.extension:source.extension
                  Definition

                  An Extension

                  ShortExtension
                  Control0..0
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  SlicingThis element introduces a set of slices on QuestionnaireResponse.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 46. QuestionnaireResponse.extension:source.url
                    Definition

                    Source of the definition for the extension code - a logical name or a URL.

                    Shortidentifies the meaning of the extension
                    Comments

                    The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

                    Control1..1
                    Typeuri
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    Fixed Valuehttp://hl7.org/fhir/5.0/StructureDefinition/extension-QuestionnaireResponse.source
                    48. QuestionnaireResponse.extension:source.value[x]
                    Definition

                    Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

                    ShortValue of extension
                    Control1..1
                    TypeReference(Device, Organization)
                    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    50. QuestionnaireResponse.modifierExtension
                    Definition

                    May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                    ShortExtensions that cannot be ignored
                    Comments

                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                    Control0..*
                    TypeExtension
                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                    Summaryfalse
                    Requirements

                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                    Alternate Namesextensions, user content
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    52. QuestionnaireResponse.identifier
                    Definition

                    A business identifier assigned to a particular completed (or partially completed) questionnaire.

                    ShortUnique id for this set of answers
                    NoteThis is a business identifier, not a resource identifier (see discussion)
                    Control0..1
                    TypeIdentifier
                    Is Modifierfalse
                    Must Supporttrue
                    Summarytrue
                    Requirements

                    Used for tracking, registration and other business purposes.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    54. QuestionnaireResponse.basedOn
                    Definition

                    The order, proposal or plan that is fulfilled in whole or in part by this QuestionnaireResponse. For example, a ServiceRequest seeking an intake assessment or a decision support recommendation to assess for post-partum depression.

                    ShortRequest fulfilled by this QuestionnaireResponse
                    Control0..*
                    TypeReference(CarePlan, ServiceRequest)
                    Is Modifierfalse
                    Summarytrue
                    Requirements

                    Supports traceability of responsibility for the action and allows linkage of an action to the recommendations acted upon.

                    Alternate Namesorder
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    56. QuestionnaireResponse.partOf
                    Definition

                    A procedure or observation that this questionnaire was performed as part of the execution of. For example, the surgery a checklist was executed as part of.

                    ShortPart of this action
                    Comments

                    Composition of questionnaire responses will be handled by the parent questionnaire having answers that reference the child questionnaire. For relationships to referrals, and other types of requests, use basedOn.

                    Control0..*
                    TypeReference(Observation, Procedure)
                    Is Modifierfalse
                    Summarytrue
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    58. QuestionnaireResponse.questionnaire
                    Definition

                    The Questionnaire that defines and organizes the questions for which answers are being provided.

                    ShortForm being answered
                    Comments

                    For SDC, this SHALL be the version-specific URL of the form as hosted on the Form Manager.

                    Control1..1
                    Typecanonical(SDC Base Questionnaire)
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supporttrue
                    Summarytrue
                    Requirements

                    Needed to allow editing of the questionnaire response in a manner that enforces the constraints of the original form.

                    Alternate NamesForm
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    60. QuestionnaireResponse.questionnaire.id
                    Definition

                    unique id for the element within a resource (for internal references)

                    Shortxml:id (or equivalent in JSON)
                    Control0..1
                    Typestring
                    Is Modifierfalse
                    XML FormatIn the XML format, this property is represented as an attribute.
                    Summaryfalse
                    62. QuestionnaireResponse.questionnaire.extension
                    Definition

                    An Extension

                    ShortExtension
                    Control0..*
                    TypeExtension
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    SlicingThis element introduces a set of slices on QuestionnaireResponse.questionnaire.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                    • value @ url
                    • 64. QuestionnaireResponse.questionnaire.extension:questionnaireDisplay
                      Slice NamequestionnaireDisplay
                      Definition

                      The title or other name to display when referencing a resource by canonical URL.

                      ShortDisplay name for canonical reference
                      Comments

                      This SHALL be the title of the Questionnaire at the time the QuestionnaireResponse was originally authored.

                      Control0..1
                      TypeExtension(Display Name) (Extension Type: string)
                      Is Modifierfalse
                      Must Supporttrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      66. QuestionnaireResponse.questionnaire.value
                      Definition

                      Primitive value for canonical

                      ShortPrimitive value for canonical
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      68. QuestionnaireResponse.status
                      Definition

                      The position of the questionnaire response within its overall lifecycle.

                      Shortin-progress | completed | amended | entered-in-error | stopped
                      Comments

                      This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

                      Control1..1
                      BindingThe codes SHALL be taken from QuestionnaireResponseStatus
                      (required to http://hl7.org/fhir/ValueSet/questionnaire-answers-status|4.0.1)

                      Lifecycle status of the questionnaire response.

                      Typecode
                      Is Modifiertrue because This element is labelled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Must Supporttrue
                      Summarytrue
                      Requirements

                      The information on Questionnaire resources may possibly be gathered during multiple sessions and altered after considered being finished.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      70. QuestionnaireResponse.subject
                      Definition

                      The subject of the questionnaire response. This could be a patient, organization, practitioner, device, etc. This is who/what the answers apply to, but is not necessarily the source of information.

                      ShortThe subject of the questions
                      Comments

                      If the Questionnaire declared a subjectType, the resource pointed to by this element must be an instance of one of the listed types. If subject is omitted - because the QuestionnaireResponse is not associated with a specific subject, ensure that QuestionnaireRsponse.identifier is present or the QuestionnaireResponse is referenced somewhere (e.g. Task.output, Composition.section.entry, etc.) to allow tracking and retrieval of the QuestionnaireResponse

                      Control0..1
                      TypeReference(Resource)
                      Is Modifierfalse
                      Must Supporttrue
                      Summarytrue
                      Requirements

                      Allows linking the answers to the individual the answers describe. May also affect access control.

                      Alternate NamesPatient, Focus
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      72. QuestionnaireResponse.encounter
                      Definition

                      The Encounter during which this questionnaire response was created or to which the creation of this record is tightly associated.

                      ShortEncounter created as part of
                      Comments

                      This will typically be the encounter the event occurred within, but some activities may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter. A questionnaire that was initiated during an encounter but not fully completed during the encounter would still generally be associated with the encounter.

                      Control0..1
                      TypeReference(Encounter)
                      Is Modifierfalse
                      Summarytrue
                      Requirements

                      Provides context for the information that was captured. May also affect access control.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      74. QuestionnaireResponse.authored
                      Definition

                      Identifies when this version of the answer set was created. Changes whenever the answers are updated.

                      ShortDate the answers were gathered
                      Comments

                      May be different from the lastUpdateTime of the resource itself, because that reflects when the data was known to the server, not when the data was captured.

                      This element is optional to allow for systems that might not know the value, however it SHOULD be populated if possible.

                      Control1..1
                      TypedateTime
                      Is Modifierfalse
                      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                      Must Supporttrue
                      Summarytrue
                      Requirements

                      Clinicians need to be able to check the date that the information in the questionnaire was collected, to derive the context of the answers.

                      Alternate NamesDate Created, Date published, Date Issued, Date updated
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      76. QuestionnaireResponse.author
                      Definition

                      Person who received the answers to the questions in the QuestionnaireResponse and recorded them in the system.

                      ShortPerson who received and recorded the answers
                      Comments

                      Mapping a subject's answers to multiple choice options and determining what to put in the textual answer is a matter of interpretation. Authoring by device would indicate that some portion of the questionnaire had been auto-populated.

                      Control0..1
                      TypeReference(Device, Practitioner, PractitionerRole, Patient, RelatedPerson, Organization)
                      Is Modifierfalse
                      Must Supporttrue
                      Must Support TypesNo must-support rules about the choice of types/profiles
                      Summarytrue
                      Requirements

                      Need to know who interpreted the subject's answers to the questions in the questionnaire, and selected the appropriate options for answers.

                      Alternate NamesLaboratory, Service, Practitioner, Department, Company, Performer
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      78. QuestionnaireResponse.source
                      Definition

                      The person who answered the questions about the subject.

                      ShortThe person who answered the questions
                      Comments

                      If not specified, no inference can be made about who provided the data.

                      Control0..1
                      TypeReference(Patient, Practitioner, PractitionerRole, RelatedPerson)
                      Is Modifierfalse
                      Summarytrue
                      Requirements

                      When answering questions about a subject that is minor, incapable of answering or an animal, another human source may answer the questions.

                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      80. QuestionnaireResponse.item
                      Definition

                      A group or question item from the original questionnaire for which answers are provided.

                      ShortGroups and questions
                      Comments

                      Groups cannot have answers and therefore must nest directly within item. When dealing with questions, nesting must occur within each answer because some questions may have multiple answers (and the nesting occurs for each answer).

                      Control0..*
                      TypeBackboneElement
                      Is Modifierfalse
                      Must Supporttrue
                      Summaryfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      qrs-1: Nested item can't be beneath both item and answer ((answer.exists() and item.exists()).not())
                      qrs-2: Repeated answers are combined in the answers array of a single item (repeat(answer|item).select(item.where(answer.value.exists()).linkId.isDistinct()).allTrue())
                      82. QuestionnaireResponse.item.id
                      Definition

                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                      ShortUnique id for inter-element referencing
                      Control0..1
                      Typestring
                      Is Modifierfalse
                      XML FormatIn the XML format, this property is represented as an attribute.
                      Summaryfalse
                      84. QuestionnaireResponse.item.extension
                      Definition

                      An Extension

                      ShortExtension
                      Control0..*
                      TypeExtension
                      Is Modifierfalse
                      Summaryfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                      SlicingThis element introduces a set of slices on QuestionnaireResponse.item.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 86. QuestionnaireResponse.item.extension:itemMedia
                        Slice NameitemMedia
                        Definition

                        Media to render/make available as an accompaniment to the question being asked

                        ShortMedia to display
                        Control0..1
                        This element is affected by the following invariants: ele-1
                        TypeExtension(Item Media) (Extension Type: Attachment)
                        Is Modifierfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        88. QuestionnaireResponse.item.extension:ItemSignature
                        Slice NameItemSignature
                        Definition

                        Represents a wet or electronic signature for either the form overall or for the question or item it's associated with.

                        ShortA signature attesting to the content
                        Control0..*
                        TypeExtension(QuestionnaireResponse Signature) (Extension Type: Signature)
                        Is Modifierfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        90. QuestionnaireResponse.item.modifierExtension
                        Definition

                        May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                        Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                        ShortExtensions that cannot be ignored even if unrecognized
                        Comments

                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                        Control0..*
                        TypeExtension
                        Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                        Summarytrue
                        Requirements

                        Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                        Alternate Namesextensions, user content, modifiers
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        92. QuestionnaireResponse.item.linkId
                        Definition

                        The item from the Questionnaire that corresponds to this item in the QuestionnaireResponse resource.

                        ShortPointer to specific item from Questionnaire
                        Control1..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summaryfalse
                        Requirements

                        Items can repeat in the answers, so a direct 1..1 correspondence by position might not exist - requiring correspondence by identifier.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        94. QuestionnaireResponse.item.definition
                        Definition

                        A reference to an ElementDefinition that provides the details for the item.

                        ShortElementDefinition - details for the item
                        Comments

                        The ElementDefinition must be in a StructureDefinition, and must have a fragment identifier that identifies the specific data element by its id (Element.id). E.g. http://hl7.org/fhir/StructureDefinition/Observation#Observation.value[x].

                        There is no need for this element if the item pointed to by the linkId has a definition listed.

                        Control0..1
                        Typeuri
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Summaryfalse
                        Requirements

                        A common pattern is to define a set of data elements, and then build multiple different questionnaires for different circumstances to gather the data. This element provides traceability to the common definition.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        96. QuestionnaireResponse.item.text
                        Definition

                        Text that is displayed above the contents of the group or as the text of the question being answered.

                        ShortName for group or question text
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                        Must Supporttrue
                        Summaryfalse
                        Requirements

                        Allows the questionnaire response to be read without access to the questionnaire.

                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        98. QuestionnaireResponse.item.answer
                        Definition

                        The respondent's answer(s) to the question.

                        ShortThe response(s) to the question
                        Comments

                        The value is nested because we cannot have a repeating structure that has variable type.

                        Control0..*
                        TypeBackboneElement
                        Is Modifierfalse
                        Must Supporttrue
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        100. QuestionnaireResponse.item.answer.id
                        Definition

                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                        ShortUnique id for inter-element referencing
                        Control0..1
                        Typestring
                        Is Modifierfalse
                        XML FormatIn the XML format, this property is represented as an attribute.
                        Summaryfalse
                        102. QuestionnaireResponse.item.answer.extension
                        Definition

                        An Extension

                        ShortExtension
                        Control0..*
                        TypeExtension
                        Is Modifierfalse
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                        SlicingThis element introduces a set of slices on QuestionnaireResponse.item.answer.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                        • value @ url
                        • 104. QuestionnaireResponse.item.answer.extension:itemAnswerMedia
                          Slice NameitemAnswerMedia
                          Definition

                          Media to render/make available as an accompaniment to a specific answer option

                          ShortAnswer Media to display
                          Control0..1
                          This element is affected by the following invariants: ele-1
                          TypeExtension(Item Answer Media) (Extension Type: Attachment)
                          Is Modifierfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          106. QuestionnaireResponse.item.answer.extension:itemWeight
                          Slice NameitemWeight
                          Definition

                          A numeric value that allows the comparison (less than, greater than) or other numerical manipulation of a concept (e.g. Adding up components of a score). Scores are usually a whole number, but occasionally decimals are encountered in scores. In the CodeSystem and ValueSet resources, the item weight is represented using the itemWeight property

                          ShortAssigned Ordinal Value
                          Comments

                          Inclusion of weights in QRs can increase performance when calculating based on weights.

                          Control0..1
                          TypeExtension(Item Weight) (Extension Type: decimal)
                          Is Modifierfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          108. QuestionnaireResponse.item.answer.modifierExtension
                          Definition

                          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                          ShortExtensions that cannot be ignored even if unrecognized
                          Comments

                          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                          Control0..*
                          TypeExtension
                          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                          Summarytrue
                          Requirements

                          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                          Alternate Namesextensions, user content, modifiers
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                          110. QuestionnaireResponse.item.answer.value[x]
                          Definition

                          The answer (or one of the answers) provided by the respondent to the question.

                          ShortSingle-valued answer to the question
                          Comments

                          More complex structures (Attachment, Resource and Quantity) will typically be limited to electronic forms that can expose an appropriate user interface to capture the components and enforce the constraints of a complex data type. Additional complex types can be introduced through extensions. Must match the datatype specified by Questionnaire.item.type in the corresponding Questionnaire.

                          Control0..1
                          BindingFor example codes, see QuestionnaireAnswerCodes
                          (example to http://hl7.org/fhir/ValueSet/questionnaire-answers)

                          Code indicating the response provided for a question.

                          TypeChoice of: boolean, decimal, integer, date, dateTime, time, string, uri, Attachment, Coding, Quantity, Reference(Resource)
                          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                          Is Modifierfalse
                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                          Must Supporttrue
                          Must Support TypesNo must-support rules about the choice of types/profiles
                          Summaryfalse
                          Requirements

                          Ability to retain a single-valued answer to a question.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          112. QuestionnaireResponse.item.answer.item
                          Definition

                          Nested groups and/or questions found within this particular answer.

                          ShortNested groups and questions
                          Control0..*
                          TypeSeettp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Requirements

                          It is useful to have "sub-questions", questions which normally appear when certain answers are given and which collect additional details.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          114. QuestionnaireResponse.item.item
                          Definition

                          Questions or sub-groups nested beneath a question or group.

                          ShortNested questionnaire response items
                          Control0..*
                          TypeSeettp://hl7.org/fhir/StructureDefinition/QuestionnaireResponse#QuestionnaireResponse.item
                          Is Modifierfalse
                          Must Supporttrue
                          Summaryfalse
                          Requirements

                          Reports can consist of complex nested groups.

                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))