description: This cross-version extension represents Observation.related from http://hl7.org/fhir/StructureDefinition/Observation|1.0.2 for use in FHIR R4.
package_name: hl7.fhir.uv.xver-r2.r4
derivation: constraint
name: Ext_R2_Observation_related
type: Extension
elements:
  extension:
    base: {max: '*', min: 0, path: Extension.extension}
    array: true
    min: 1
    index: 0
    slicing:
      rules: closed
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: 1
      slices:
        type:
          match: {url: type}
          schema:
            short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
            base: {max: '*', min: 0, path: Extension.extension}
            index: 1
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: type}
                index: 2
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
                choices: [valueCode]
                index: 4
              valueCode:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: code
                short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
                choiceOf: value
                index: 5
            required: [url]
        target:
          match: {url: target}
          schema:
            short: Resource that is related to this one
            _required: true
            base: {max: '*', min: 0, path: Extension.extension}
            index: 6
            elements:
              url:
                base: {max: '1', min: 1, path: Extension.url}
                pattern: {type: Uri, value: target}
                index: 7
              value:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                short: Resource that is related to this one
                choices: [valueReference]
                index: 9
              valueReference:
                base: {max: '1', min: 0, path: 'Extension.value[x]'}
                type: Reference
                short: Resource that is related to this one
                choiceOf: value
                index: 10
            required: [url]
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.related'}
    index: 11
package_version: 0.0.1-snapshot-2
extensions:
  type:
    url: type
    short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
    base: {max: '*', min: 0, path: Extension.extension}
    index: 1
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: type}
        index: 2
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
        choices: [valueCode]
        index: 4
      valueCode:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: code
        short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
        choiceOf: value
        index: 5
    required: [url]
  target:
    url: target
    short: Resource that is related to this one
    _required: true
    base: {max: '*', min: 0, path: Extension.extension}
    index: 6
    elements:
      url:
        base: {max: '1', min: 1, path: Extension.url}
        pattern: {type: Uri, value: target}
        index: 7
      value:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        short: Resource that is related to this one
        choices: [valueReference]
        index: 9
      valueReference:
        base: {max: '1', min: 0, path: 'Extension.value[x]'}
        type: Reference
        short: Resource that is related to this one
        choiceOf: value
        index: 10
    required: [url]
class: extension
kind: complex-type
url: http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.related
base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1
version: 0.0.1-snapshot-2
required: [url, extension]