description: A reference to a concept map that is relevant for the interpretation of this value set. package_name: hl7.fhir.core derivation: constraint name: A concept map relevant to interpret this value set type: null elements: extension: {name: extension, index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/codesystem-map'} index: 1 value: choices: [valueReference] index: 3 valueReference: {type: Reference, choiceOf: value, index: 4} package_version: 1.4.0 extensions: {} class: datatype kind: datatype url: http://hl7.org/fhir/StructureDefinition/codesystem-map base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [valueReference, value]