description: This cross-version extension represents EvidenceVariable.characteristicCombination from http://hl7.org/fhir/StructureDefinition/EvidenceVariable|4.3.0 for use in FHIR R4.
package_name: hl7.fhir.uv.xver-r4b.r4
derivation: constraint
name: ext_R4B_EvidenceVariable_characteristicCombination
type: Extension
elements:
  value:
    base: {path: 'Extension.value[x]'}
    short: intersection | union
    choices: [valueCode]
    index: 1
  valueCode:
    base: {path: 'Extension.value[x]'}
    type: code
    short: intersection | union
    choiceOf: value
    index: 2
  url:
    pattern: {type: uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-EvidenceVariable.characteristicCombination'}
    type: uri
    index: 3
package_version: 0.0.1-snapshot-1
class: extension
kind: complex-type
url: http://hl7.org/fhir/4.3/StructureDefinition/extension-EvidenceVariable.characteristicCombination
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.0.1-snapshot-1
required: [url]