description: This cross-version extension represents SpecimenDefinition.typeTested.container.additive.additive[x] from http://hl7.org/fhir/StructureDefinition/SpecimenDefinition|4.0.1 for use in FHIR R5.
package_name: hl7.fhir.uv.xver-r4.r5
derivation: constraint
name: ext_R4_SpecimenDefinition_ty_co_ad_additive
type: Extension
elements:
  value:
    base: {path: 'Extension.value[x]'}
    short: Additive associated with container
    choices: [valueCodeableConcept, valueReference]
    index: 1
  valueCodeableConcept:
    base: {path: 'Extension.value[x]'}
    type: CodeableConcept
    short: Additive associated with container
    choiceOf: value
    index: 2
  valueReference:
    short: Additive associated with container
    refers: ['http://hl7.org/fhir/StructureDefinition/Substance']
    type: Reference
    base: {path: 'Extension.value[x]'}
    choiceOf: value
    index: 3
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/4.0/StructureDefinition/extension-SpecimenDefinition.typeTested.container.additive.additive'}
    type: uri
    index: 4
package_version: 0.0.1-snapshot-1
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.0/StructureDefinition/extension-SpecimenDefinition.typeTested.container.additive.additive
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.0.1-snapshot-1
required: [url]