description: 'STU3: `Observation.value[x]` additional types (Range, Ratio, SampledData, Attachment, Period)'
package_name: hl7.fhir.uv.xver-r3.r5
derivation: constraint
name: ExtensionObservation_Value
type: Extension
elements:
  url:
    base: {max: '1', min: 1, path: Extension.url}
    pattern: {type: Uri, value: 'http://hl7.org/fhir/3.0/StructureDefinition/extension-Observation.value'}
    index: 0
  value:
    short: Actual result
    choices: [valueRange, valueRatio, valueSampledData, valueAttachment, valuePeriod]
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    index: 2
  valueRange:
    short: Actual result
    type: Range
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
  valueRatio:
    short: Actual result
    type: Ratio
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 4
  valueSampledData:
    short: Actual result
    type: SampledData
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 5
  valueAttachment:
    short: Actual result
    type: Attachment
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 6
  valuePeriod:
    short: Actual result
    type: Period
    base: {max: '1', min: 0, path: 'Extension.value[x]'}
    choiceOf: value
    index: 7
package_version: 0.1.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/3.0/StructureDefinition/extension-Observation.value
base: http://hl7.org/fhir/StructureDefinition/Extension|5.0.0
version: 0.1.0
required: [url]