description: An extension to replicate the changes within R5 to support adding a reference to image or data source(DocumentReference). When using this extension DiagnosticReport.media.link SHALL be populated with the extension http://hl7.org/fhir/StructureDefinition/data-absent-reason with value 'unsupported'.
package_name: fhir.r4.ukcore.stu3.currentbuild
derivation: constraint
name: ExtensionUKCoreDiagnosticReportMediaLink
type: Extension
elements:
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link'}
    type: uri
    index: 0
  value:
    short: Reference to the image or data source
    choices: [valueReference]
    index: 2
  valueReference:
    type: Reference
    short: Reference to the image or data source
    choiceOf: value
    refers: ['http://hl7.org/fhir/StructureDefinition/DocumentReference']
    index: 3
package_version: 0.20.0-pre-release
class: extension
kind: complex-type
url: http://hl7.org/fhir/5.0/StructureDefinition/extension-DiagnosticReport.media.link
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.1.0
required: [value, valueReference]