description: Set to true if the concept map can be safely intepreted in reversse. package_name: rs/hl7.fhir.r4.core derivation: constraint name: bidirectional type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/concept-bidirectional'} type: uri index: 1 value: choices: [valueBoolean] index: 3 valueBoolean: {type: boolean, choiceOf: value, index: 4} package_version: 4.0.1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/concept-bidirectional base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.0.1 required: [value, valueBoolean]