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: rs/hl7.fhir.uv.xver
derivation: constraint
name: ext_R2_Observation_related
type: Extension
elements:
  extension:
    array: true
    min: 1
    index: 0
    slicing:
      rules: closed
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: 1
      slices:
        type:
          match: {url: null}
          schema:
            isModifier: false
            short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
            index: 1
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
                choices: [valueCode]
                index: 3
              valueCode:
                base: {path: 'Extension.value[x]'}
                type: code
                short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
                choiceOf: value
                index: 4
        target:
          match: {url: null}
          schema:
            isModifier: false
            short: Resource that is related to this one
            _required: true
            index: 5
            elements:
              value:
                base: {path: 'Extension.value[x]'}
                short: Resource that is related to this one
                choices: [valueReference]
                index: 7
              valueReference:
                short: Resource that is related to this one
                refers: ['http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse']
                type: Reference
                base: {path: 'Extension.value[x]'}
                choiceOf: value
                index: 8
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.related'}
    type: uri
    index: 9
package_version: r2.r4-0.0.1-snapshot-1
extensions:
  type:
    url: null
    isModifier: false
    short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
    index: 1
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
        choices: [valueCode]
        index: 3
      valueCode:
        base: {path: 'Extension.value[x]'}
        type: code
        short: has-member | derived-from | sequel-to | replaces | qualified-by | interfered-by
        choiceOf: value
        index: 4
  target:
    url: null
    isModifier: false
    short: Resource that is related to this one
    _required: true
    index: 5
    elements:
      value:
        base: {path: 'Extension.value[x]'}
        short: Resource that is related to this one
        choices: [valueReference]
        index: 7
      valueReference:
        short: Resource that is related to this one
        refers: ['http://hl7.org/fhir/StructureDefinition/Observation', 'http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse']
        type: Reference
        base: {path: 'Extension.value[x]'}
        choiceOf: value
        index: 8
class: extension
kind: complex-type
url: http://hl7.org/fhir/1.0/StructureDefinition/extension-Observation.related
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.0.1-snapshot-1
required: [extension, url]