description: null package_name: io.health-samurai.core.r5 derivation: constraint name: legacy-fce-extension type: Extension elements: url: pattern: {type: Uri, value: 'http://fhir.aidbox.app/fhir/StructureDefinition/legacy-fce'} index: 0 value: choices: [valueString] index: 2 valueString: {type: string, choiceOf: value, index: 3} package_version: 0.2601.0 class: extension kind: complex-type url: http://fhir.aidbox.app/fhir/StructureDefinition/legacy-fce base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.2601.0