BfArM Digitale Anwendungen
3.0.2-RC1 - draft

BfArM Digitale Anwendungen - Local Development build (v3.0.2-RC1) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Extension: HiisQuestionnaireItemDescription - Detailed Descriptions

Draft as of 2026-02-25

Definitions for the HiisQuestionnaireItemDescription extension.

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

0. Extension
Definition

Additional descriptive texts for the answerOption or item.


Optional Extension Element - found in all resources.

ShortDescriptive textsOptional Extensions Element
Control0..*
This element is affected by the following invariants: ele-1
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())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
2. Extension.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
Must Supporttrue
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 Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Extension.extension:description
    Slice Namedescription
    Definition

    A human-readable description of the item.

    ShortDescriptionAdditional content defined by implementations
    Control0..1*
    TypeExtension
    Is Modifierfalse
    Must Supporttrue
    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())
    6. Extension.extension:description.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 Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 8. Extension.extension:description.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 Valuedescription
      10. Extension.extension:description.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
      Typestring, 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, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, 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
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Must Supporttrue
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      SlicingThis element introduces a set of slices on Extension.extension.value[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
      • type @ $this
      • 12. Extension.extension:description.value[x]:valueString
        Slice NamevalueString
        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
        Typestring, 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, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, 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
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        14. Extension.extension:explanation
        Slice Nameexplanation
        Definition

        A human-readable explanation of the item. This may replace the name or description of the item.

        ShortExplanationAdditional content defined by implementations
        Control0..1*
        TypeExtension
        Is Modifierfalse
        Must Supporttrue
        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())
        16. Extension.extension:explanation.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 Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 18. Extension.extension:explanation.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 Valueexplanation
          20. Extension.extension:explanation.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
          Typestring, 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, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, 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
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Must Supporttrue
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          SlicingThis element introduces a set of slices on Extension.extension.value[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
          • type @ $this
          • 22. Extension.extension:explanation.value[x]:valueString
            Slice NamevalueString
            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
            Typestring, 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, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, 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
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Must Supporttrue
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            24. Extension.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 Valuehttps://fhir.bfarm.de/StructureDefinition/HiisQuestionnaireItemDescription
            26. Extension.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
            Control0..01
            TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
            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()))

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

            0. Extension
            Definition

            Additional descriptive texts for the answerOption or item.

            ShortDescriptive texts
            Must Supporttrue
            2. Extension.extension
            Must Supporttrue
            4. Extension.extension:description
            Slice Namedescription
            Definition

            A human-readable description of the item.

            ShortDescription
            Control0..1
            Must Supporttrue
            6. Extension.extension:description.extension
            Control0..0
            8. Extension.extension:description.url
            Fixed Valuedescription
            10. Extension.extension:description.value[x]
            Control1..?
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Must Supporttrue
            SlicingThis element introduces a set of slices on Extension.extension.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • type @ $this
            • 12. Extension.extension:description.value[x]:valueString
              Slice NamevalueString
              Control1..1
              Typestring
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Must Supporttrue
              14. Extension.extension:explanation
              Slice Nameexplanation
              Definition

              A human-readable explanation of the item. This may replace the name or description of the item.

              ShortExplanation
              Control0..1
              Must Supporttrue
              16. Extension.extension:explanation.extension
              Control0..0
              18. Extension.extension:explanation.url
              Fixed Valueexplanation
              20. Extension.extension:explanation.value[x]
              Control1..?
              [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
              Must Supporttrue
              SlicingThis element introduces a set of slices on Extension.extension.value[x]. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • type @ $this
              • 22. Extension.extension:explanation.value[x]:valueString
                Slice NamevalueString
                Control1..1
                Typestring
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Must Supporttrue
                24. Extension.url
                Fixed Valuehttps://fhir.bfarm.de/StructureDefinition/HiisQuestionnaireItemDescription
                26. Extension.value[x]
                Control0..0

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

                0. Extension
                Definition

                Additional descriptive texts for the answerOption or item.

                ShortDescriptive texts
                Control0..*
                This element is affected by the following invariants: ele-1
                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())
                2. Extension.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
                4. Extension.extension
                Definition

                An Extension

                ShortExtension
                Control0..*
                TypeExtension
                Is Modifierfalse
                Must Supporttrue
                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 Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 6. Extension.extension:description
                  Slice Namedescription
                  Definition

                  A human-readable description of the item.

                  ShortDescription
                  Control0..1
                  TypeExtension
                  Is Modifierfalse
                  Must Supporttrue
                  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())
                  8. Extension.extension:description.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
                  10. Extension.extension:description.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 Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 12. Extension.extension:description.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 Valuedescription
                    14. Extension.extension:description.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
                    Typestring
                    [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
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    SlicingThis element introduces a set of slices on Extension.extension.value[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                    • type @ $this
                    • 16. Extension.extension:description.value[x]:valueString
                      Slice NamevalueString
                      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
                      Typestring
                      [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
                      Summaryfalse
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      18. Extension.extension:explanation
                      Slice Nameexplanation
                      Definition

                      A human-readable explanation of the item. This may replace the name or description of the item.

                      ShortExplanation
                      Control0..1
                      TypeExtension
                      Is Modifierfalse
                      Must Supporttrue
                      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())
                      20. Extension.extension:explanation.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
                      22. Extension.extension:explanation.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 Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                      • value @ url
                      • 24. Extension.extension:explanation.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 Valueexplanation
                        26. Extension.extension:explanation.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
                        Typestring
                        [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
                        Summaryfalse
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        SlicingThis element introduces a set of slices on Extension.extension.value[x]. The slices areUnordered and Closed, and can be differentiated using the following discriminators:
                        • type @ $this
                        • 28. Extension.extension:explanation.value[x]:valueString
                          Slice NamevalueString
                          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
                          Typestring
                          [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
                          Summaryfalse
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          30. Extension.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 Valuehttps://fhir.bfarm.de/StructureDefinition/HiisQuestionnaireItemDescription
                          32. Extension.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
                          Control0..0
                          TypeChoice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, Reference, SampledData, Signature, Timing, ContactDetail, Contributor, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Dosage, Meta
                          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()))