description: Codes to represent the functional status of a device implanted in a patient. Both overall device status and an implant status need to be considered. The implant status should only be used when the [device status](device-definitions.html#Device.status) is `active `. package_name: hl7.fhir.uv.extensions.r5 derivation: constraint name: DevImplantStatus type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/device-implantStatus'} index: 1 value: choices: [valueCode] index: 3 valueCode: {type: code, choiceOf: value, index: 4} package_version: 5.3.0-ballot-tc extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/device-implantStatus base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc required: [valueCode, value]