description: 'R4B: `ElementDefinition.fixed[x]` additional types (CodeableReference, RatioRange)'
package_name: hl7.fhir.uv.xver-r4b.r4
derivation: constraint
name: ExtensionElementDefinition_Fixed
type: Extension
elements:
  extension:
    base: {max: '*', min: 0, path: Extension.extension}
    array: true
    index: 0
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: 0
      slices:
        valueCodeableReference:
          match: {url: valueCodeableReference}
          schema:
            short: 'R4B: Reference to a resource or a concept'
            array: true
            base: {max: '*', min: 0, path: Extension.extension}
            index: 1
            extensions:
              _datatype:
                url: http://hl7.org/fhir/StructureDefinition/_datatype
                base: {max: '*', min: 0, path: Extension.extension}
                short: DataType slice for a FHIR R4B `CodeableReference` value
                _required: true
                index: 2
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                    index: 3
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    pattern: {type: String, value: CodeableReference}
                    choices: [valueString]
                    index: 5
                  valueString:
                    type: string
                    pattern: {type: String, value: CodeableReference}
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 6
                required: [url, valueString, value]
              concept:
                url: concept
                short: 'R4B: Reference to a concept (by class)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 8
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: concept}
                    index: 9
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    short: Reference to a concept (by class)
                    choices: [valueCodeableConcept]
                    index: 11
                  valueCodeableConcept:
                    short: Reference to a concept (by class)
                    type: CodeableConcept
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 12
                required: [url]
              reference:
                url: reference
                short: 'R4B: Reference to a resource (by instance)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 13
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: reference}
                    index: 14
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    short: Reference to a resource (by instance)
                    choices: [valueReference]
                    index: 16
                  valueReference:
                    short: Reference to a resource (by instance)
                    type: Reference
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 17
                required: [url]
            elements:
              extension:
                base: {max: '*', min: 0, path: Extension.extension}
                short: DataType slice for a FHIR R4B `CodeableReference` value
                index: 2
                slicing:
                  rules: open
                  ordered: false
                  discriminator:
                  - {path: url, type: value}
                  min: 0
                  slices:
                    _datatype:
                      match: {url: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                      schema:
                        base: {max: '*', min: 0, path: Extension.extension}
                        short: DataType slice for a FHIR R4B `CodeableReference` value
                        _required: true
                        index: 2
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                            index: 3
                          value:
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            pattern: {type: String, value: CodeableReference}
                            choices: [valueString]
                            index: 5
                          valueString:
                            type: string
                            pattern: {type: String, value: CodeableReference}
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 6
                        required: [url, valueString, value]
                    concept:
                      match: {url: concept}
                      schema:
                        short: 'R4B: Reference to a concept (by class)'
                        base: {max: '*', min: 0, path: Extension.extension}
                        index: 8
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: concept}
                            index: 9
                          value:
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            short: Reference to a concept (by class)
                            choices: [valueCodeableConcept]
                            index: 11
                          valueCodeableConcept:
                            short: Reference to a concept (by class)
                            type: CodeableConcept
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 12
                        required: [url]
                    reference:
                      match: {url: reference}
                      schema:
                        short: 'R4B: Reference to a resource (by instance)'
                        base: {max: '*', min: 0, path: Extension.extension}
                        index: 13
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: reference}
                            index: 14
                          value:
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            short: Reference to a resource (by instance)
                            choices: [valueReference]
                            index: 16
                          valueReference:
                            short: Reference to a resource (by instance)
                            type: Reference
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 17
                        required: [url]
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: valueCodeableReference}
                index: 18
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                choices: []
                index: 20
            required: [url, extension]
        valueRatioRange:
          match: {url: valueRatioRange}
          schema:
            short: 'R4B: Range of ratio values (new)'
            array: true
            base: {max: '*', min: 0, path: Extension.extension}
            index: 21
            extensions:
              _datatype:
                url: http://hl7.org/fhir/StructureDefinition/_datatype
                base: {max: '*', min: 0, path: Extension.extension}
                short: DataType slice for a FHIR R4B `RatioRange` value
                _required: true
                index: 22
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                    index: 23
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    pattern: {type: String, value: RatioRange}
                    choices: [valueString]
                    index: 25
                  valueString:
                    type: string
                    pattern: {type: String, value: RatioRange}
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 26
                required: [url, valueString, value]
              lowNumerator:
                url: lowNumerator
                short: 'R4B: Low Numerator limit (new)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 28
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: lowNumerator}
                    index: 29
                  value:
                    short: Low Numerator limit
                    choices: [valueQuantity]
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    index: 31
                  valueQuantity:
                    short: Low Numerator limit
                    type: Quantity
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 32
                required: [url]
              highNumerator:
                url: highNumerator
                short: 'R4B: High Numerator limit (new)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 33
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: highNumerator}
                    index: 34
                  value:
                    short: High Numerator limit
                    choices: [valueQuantity]
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    index: 36
                  valueQuantity:
                    short: High Numerator limit
                    type: Quantity
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 37
                required: [url]
              denominator:
                url: denominator
                short: 'R4B: Denominator value (new)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 38
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: denominator}
                    index: 39
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    short: Denominator value
                    choices: [valueQuantity]
                    index: 41
                  valueQuantity:
                    short: Denominator value
                    type: Quantity
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 42
                required: [url]
            elements:
              extension:
                base: {max: '*', min: 0, path: Extension.extension}
                short: DataType slice for a FHIR R4B `RatioRange` value
                index: 22
                slicing:
                  rules: open
                  ordered: false
                  discriminator:
                  - {path: url, type: value}
                  min: 0
                  slices:
                    _datatype:
                      match: {url: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                      schema:
                        base: {max: '*', min: 0, path: Extension.extension}
                        short: DataType slice for a FHIR R4B `RatioRange` value
                        _required: true
                        index: 22
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                            index: 23
                          value:
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            pattern: {type: String, value: RatioRange}
                            choices: [valueString]
                            index: 25
                          valueString:
                            type: string
                            pattern: {type: String, value: RatioRange}
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 26
                        required: [url, valueString, value]
                    lowNumerator:
                      match: {url: lowNumerator}
                      schema:
                        short: 'R4B: Low Numerator limit (new)'
                        base: {max: '*', min: 0, path: Extension.extension}
                        index: 28
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: lowNumerator}
                            index: 29
                          value:
                            short: Low Numerator limit
                            choices: [valueQuantity]
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            index: 31
                          valueQuantity:
                            short: Low Numerator limit
                            type: Quantity
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 32
                        required: [url]
                    highNumerator:
                      match: {url: highNumerator}
                      schema:
                        short: 'R4B: High Numerator limit (new)'
                        base: {max: '*', min: 0, path: Extension.extension}
                        index: 33
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: highNumerator}
                            index: 34
                          value:
                            short: High Numerator limit
                            choices: [valueQuantity]
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            index: 36
                          valueQuantity:
                            short: High Numerator limit
                            type: Quantity
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 37
                        required: [url]
                    denominator:
                      match: {url: denominator}
                      schema:
                        short: 'R4B: Denominator value (new)'
                        base: {max: '*', min: 0, path: Extension.extension}
                        index: 38
                        elements:
                          url:
                            base: {max: '1', min: 1, path: Extension.url}
                            pattern: {type: Uri, value: denominator}
                            index: 39
                          value:
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            short: Denominator value
                            choices: [valueQuantity]
                            index: 41
                          valueQuantity:
                            short: Denominator value
                            type: Quantity
                            base: {max: '1', min: 0, path: 'Extension.value[x]'}
                            choiceOf: value
                            index: 42
                        required: [url]
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: valueRatioRange}
                index: 43
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                choices: []
                index: 45
            required: [url, extension]
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-ElementDefinition.fixed'}
    index: 46
  value:
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choices: []
    index: 48
package_version: 0.1.0
extensions:
  valueCodeableReference:
    url: valueCodeableReference
    short: 'R4B: Reference to a resource or a concept'
    array: true
    base: {max: '*', min: 0, path: Extension.extension}
    index: 1
    extensions:
      _datatype:
        url: http://hl7.org/fhir/StructureDefinition/_datatype
        base: {max: '*', min: 0, path: Extension.extension}
        short: DataType slice for a FHIR R4B `CodeableReference` value
        _required: true
        index: 2
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
            index: 3
          value:
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            pattern: {type: String, value: CodeableReference}
            choices: [valueString]
            index: 5
          valueString:
            type: string
            pattern: {type: String, value: CodeableReference}
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 6
        required: [url, valueString, value]
      concept:
        url: concept
        short: 'R4B: Reference to a concept (by class)'
        base: {max: '*', min: 0, path: Extension.extension}
        index: 8
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: concept}
            index: 9
          value:
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            short: Reference to a concept (by class)
            choices: [valueCodeableConcept]
            index: 11
          valueCodeableConcept:
            short: Reference to a concept (by class)
            type: CodeableConcept
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 12
        required: [url]
      reference:
        url: reference
        short: 'R4B: Reference to a resource (by instance)'
        base: {max: '*', min: 0, path: Extension.extension}
        index: 13
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: reference}
            index: 14
          value:
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            short: Reference to a resource (by instance)
            choices: [valueReference]
            index: 16
          valueReference:
            short: Reference to a resource (by instance)
            type: Reference
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 17
        required: [url]
    elements:
      extension:
        base: {max: '*', min: 0, path: Extension.extension}
        short: DataType slice for a FHIR R4B `CodeableReference` value
        index: 2
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: 0
          slices:
            _datatype:
              match: {url: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
              schema:
                base: {max: '*', min: 0, path: Extension.extension}
                short: DataType slice for a FHIR R4B `CodeableReference` value
                _required: true
                index: 2
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                    index: 3
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    pattern: {type: String, value: CodeableReference}
                    choices: [valueString]
                    index: 5
                  valueString:
                    type: string
                    pattern: {type: String, value: CodeableReference}
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 6
                required: [url, valueString, value]
            concept:
              match: {url: concept}
              schema:
                short: 'R4B: Reference to a concept (by class)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 8
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: concept}
                    index: 9
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    short: Reference to a concept (by class)
                    choices: [valueCodeableConcept]
                    index: 11
                  valueCodeableConcept:
                    short: Reference to a concept (by class)
                    type: CodeableConcept
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 12
                required: [url]
            reference:
              match: {url: reference}
              schema:
                short: 'R4B: Reference to a resource (by instance)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 13
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: reference}
                    index: 14
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    short: Reference to a resource (by instance)
                    choices: [valueReference]
                    index: 16
                  valueReference:
                    short: Reference to a resource (by instance)
                    type: Reference
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 17
                required: [url]
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: valueCodeableReference}
        index: 18
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        choices: []
        index: 20
    required: [url, extension]
  valueRatioRange:
    url: valueRatioRange
    short: 'R4B: Range of ratio values (new)'
    array: true
    base: {max: '*', min: 0, path: Extension.extension}
    index: 21
    extensions:
      _datatype:
        url: http://hl7.org/fhir/StructureDefinition/_datatype
        base: {max: '*', min: 0, path: Extension.extension}
        short: DataType slice for a FHIR R4B `RatioRange` value
        _required: true
        index: 22
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
            index: 23
          value:
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            pattern: {type: String, value: RatioRange}
            choices: [valueString]
            index: 25
          valueString:
            type: string
            pattern: {type: String, value: RatioRange}
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 26
        required: [url, valueString, value]
      lowNumerator:
        url: lowNumerator
        short: 'R4B: Low Numerator limit (new)'
        base: {max: '*', min: 0, path: Extension.extension}
        index: 28
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: lowNumerator}
            index: 29
          value:
            short: Low Numerator limit
            choices: [valueQuantity]
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            index: 31
          valueQuantity:
            short: Low Numerator limit
            type: Quantity
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 32
        required: [url]
      highNumerator:
        url: highNumerator
        short: 'R4B: High Numerator limit (new)'
        base: {max: '*', min: 0, path: Extension.extension}
        index: 33
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: highNumerator}
            index: 34
          value:
            short: High Numerator limit
            choices: [valueQuantity]
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            index: 36
          valueQuantity:
            short: High Numerator limit
            type: Quantity
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 37
        required: [url]
      denominator:
        url: denominator
        short: 'R4B: Denominator value (new)'
        base: {max: '*', min: 0, path: Extension.extension}
        index: 38
        elements:
          url:
            base: {max: '1', min: 1, path: Extension.url}
            pattern: {type: Uri, value: denominator}
            index: 39
          value:
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            short: Denominator value
            choices: [valueQuantity]
            index: 41
          valueQuantity:
            short: Denominator value
            type: Quantity
            base: {max: '1', min: 0, path: 'Extension.value[x]'}
            choiceOf: value
            index: 42
        required: [url]
    elements:
      extension:
        base: {max: '*', min: 0, path: Extension.extension}
        short: DataType slice for a FHIR R4B `RatioRange` value
        index: 22
        slicing:
          rules: open
          ordered: false
          discriminator:
          - {path: url, type: value}
          min: 0
          slices:
            _datatype:
              match: {url: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
              schema:
                base: {max: '*', min: 0, path: Extension.extension}
                short: DataType slice for a FHIR R4B `RatioRange` value
                _required: true
                index: 22
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/_datatype'}
                    index: 23
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    pattern: {type: String, value: RatioRange}
                    choices: [valueString]
                    index: 25
                  valueString:
                    type: string
                    pattern: {type: String, value: RatioRange}
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 26
                required: [url, valueString, value]
            lowNumerator:
              match: {url: lowNumerator}
              schema:
                short: 'R4B: Low Numerator limit (new)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 28
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: lowNumerator}
                    index: 29
                  value:
                    short: Low Numerator limit
                    choices: [valueQuantity]
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    index: 31
                  valueQuantity:
                    short: Low Numerator limit
                    type: Quantity
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 32
                required: [url]
            highNumerator:
              match: {url: highNumerator}
              schema:
                short: 'R4B: High Numerator limit (new)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 33
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: highNumerator}
                    index: 34
                  value:
                    short: High Numerator limit
                    choices: [valueQuantity]
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    index: 36
                  valueQuantity:
                    short: High Numerator limit
                    type: Quantity
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 37
                required: [url]
            denominator:
              match: {url: denominator}
              schema:
                short: 'R4B: Denominator value (new)'
                base: {max: '*', min: 0, path: Extension.extension}
                index: 38
                elements:
                  url:
                    base: {max: '1', min: 1, path: Extension.url}
                    pattern: {type: Uri, value: denominator}
                    index: 39
                  value:
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    short: Denominator value
                    choices: [valueQuantity]
                    index: 41
                  valueQuantity:
                    short: Denominator value
                    type: Quantity
                    base: {max: '1', min: 0, path: 'Extension.value[x]'}
                    choiceOf: value
                    index: 42
                required: [url]
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: valueRatioRange}
        index: 43
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        choices: []
        index: 45
    required: [url, extension]
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-ElementDefinition.fixed
base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
version: 0.1.0
required: [url]