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Extension: StructuredInfo - Detailed Descriptions

Active as of 2026-08-31

Definitions for the nilar-structured-info extension.

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

0. Extension
Definition

Used on Observation to convey additional information.


Optional Extension Element - found in all resources.

ShortStructured InfoOptional Extensions Element
Control0..*
This element is affected by the following invariants: ele-1
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())
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.

Control10..*
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. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Extension.extension:structuredinfotype
    Slice Namestructuredinfotype
    Definition

    Type of information.

    ShortStructured Info Type
    Control1..1
    TypeExtension(Structured Info Type) (Extension Type: CodeableConcept)
    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:structuredinfotext
    Slice Namestructuredinfotext
    Definition

    Textual information.

    ShortStructured Info Text
    Control0..*
    TypeExtension(Structured Info Text) (Extension Type: string)
    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:structuredinfointeger
    Slice Namestructuredinfointeger
    Definition

    Integer information.

    ShortStructured Info Integer
    Control0..*
    TypeExtension(Structured Info Integer) (Extension Type: integer)
    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())
    10. Extension.extension:structuredinfophysical
    Slice Namestructuredinfophysical
    Definition

    Physical information.

    ShortStructured Info Physical
    Control0..*
    TypeExtension(Structured Info Physical) (Extension Type: Quantity)
    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())
    12. Extension.extension:structuredinfocoded
    Slice Namestructuredinfocoded
    Definition

    Coded information.

    ShortStructured Info Coded
    Control0..*
    TypeExtension(Structured Info Coded) (Extension Type: CodeableConcept)
    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())
    14. Extension.extension:structuredinfoboolean
    Slice Namestructuredinfoboolean
    Definition

    Boolean information.

    ShortStructured Info Boolean
    Control0..*
    TypeExtension(Structured Info Boolean) (Extension Type: boolean)
    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.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://nhn.no/fhir/nilar/StructureDefinition/nilar-structured-info
    18. 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

    Used on Observation to convey additional information.

    ShortStructured Info
    2. Extension.extension
    Control1..?
    4. Extension.extension:structuredinfotype
    Slice Namestructuredinfotype
    Control1..1
    TypeExtension(Structured Info Type) (Extension Type: CodeableConcept)
    Must Supporttrue
    6. Extension.extension:structuredinfotext
    Slice Namestructuredinfotext
    Control0..*
    TypeExtension(Structured Info Text) (Extension Type: string)
    Must Supporttrue
    8. Extension.extension:structuredinfointeger
    Slice Namestructuredinfointeger
    Control0..*
    TypeExtension(Structured Info Integer) (Extension Type: integer)
    Must Supporttrue
    10. Extension.extension:structuredinfophysical
    Slice Namestructuredinfophysical
    Control0..*
    TypeExtension(Structured Info Physical) (Extension Type: Quantity)
    Must Supporttrue
    12. Extension.extension:structuredinfocoded
    Slice Namestructuredinfocoded
    Control0..*
    TypeExtension(Structured Info Coded) (Extension Type: CodeableConcept)
    Must Supporttrue
    14. Extension.extension:structuredinfoboolean
    Slice Namestructuredinfoboolean
    Control0..*
    TypeExtension(Structured Info Boolean) (Extension Type: boolean)
    Must Supporttrue
    16. Extension.url
    Fixed Valuehttp://nhn.no/fhir/nilar/StructureDefinition/nilar-structured-info
    18. Extension.value[x]
    Control0..0

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

    0. Extension
    Definition

    Used on Observation to convey additional information.

    ShortStructured Info
    Control0..*
    This element is affected by the following invariants: ele-1
    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())
    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
    Control1..*
    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. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 6. Extension.extension:structuredinfotype
      Slice Namestructuredinfotype
      Definition

      Type of information.

      ShortStructured Info Type
      Control1..1
      TypeExtension(Structured Info Type) (Extension Type: CodeableConcept)
      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:structuredinfotext
      Slice Namestructuredinfotext
      Definition

      Textual information.

      ShortStructured Info Text
      Control0..*
      TypeExtension(Structured Info Text) (Extension Type: string)
      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())
      10. Extension.extension:structuredinfointeger
      Slice Namestructuredinfointeger
      Definition

      Integer information.

      ShortStructured Info Integer
      Control0..*
      TypeExtension(Structured Info Integer) (Extension Type: integer)
      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())
      12. Extension.extension:structuredinfophysical
      Slice Namestructuredinfophysical
      Definition

      Physical information.

      ShortStructured Info Physical
      Control0..*
      TypeExtension(Structured Info Physical) (Extension Type: Quantity)
      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())
      14. Extension.extension:structuredinfocoded
      Slice Namestructuredinfocoded
      Definition

      Coded information.

      ShortStructured Info Coded
      Control0..*
      TypeExtension(Structured Info Coded) (Extension Type: CodeableConcept)
      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:structuredinfoboolean
      Slice Namestructuredinfoboolean
      Definition

      Boolean information.

      ShortStructured Info Boolean
      Control0..*
      TypeExtension(Structured Info Boolean) (Extension Type: boolean)
      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())
      18. 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 Valuehttp://nhn.no/fhir/nilar/StructureDefinition/nilar-structured-info
      20. 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()))