description: This observation replaces a previous observation (i.e. a revised value).
package_name: hl7.fhir.uv.extensions
derivation: constraint
name: ObsReplaces
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-replaces'}
    index: 1
  value:
    choices: [valueReference]
    index: 3
  valueReference:
    type: Reference
    choiceOf: value
    refers: ['http://hl7.org/fhir/StructureDefinition/Observation']
    index: 4
package_version: 5.1.0-snapshot1
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/observation-replaces
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.1.0-snapshot1
required: [valueReference, value]