description: The report replaces the target resource.  For example, when a final anatomic pathology report replaces a preliminary anatomic pathology report replaces  where the subsequent observation of case and report  may be on more or different material (specimen).  Note that  this is not same concept as` DiagnosticReport.status`  = preliminary of final, but industry definition of preliminary and final.
package_name: hl7.fhir.uv.extensions.r4
derivation: constraint
name: DRReplaces
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/diagnosticReport-replaces'}
    index: 1
  value:
    choices: [valueReference]
    index: 3
  valueReference:
    type: Reference
    choiceOf: value
    refers: ['http://hl7.org/fhir/StructureDefinition/DiagnosticReport']
    index: 4
package_version: 5.3.0-ballot-tc
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/diagnosticReport-replaces
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc
required: [valueReference, value]