| identifier | No | Identifier[] | Instance identifier |
| definition | No | Reference<DeviceDefinition> | The reference to the definition for the device |
| udiCarrier | No | DeviceUdiCarrier | Unique Device Identifier (UDI) Barcode string |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - deviceIdentifier | No | string | Mandatory fixed portion of UDI |
| - issuer | No | uri | UDI Issuing Organization |
| - jurisdiction | No | uri | Regional UDI authority |
| - carrierAIDC | No | base64Binary | UDI Machine Readable Barcode String |
| - carrierHRF | No | string | UDI Human Readable Barcode String |
| - entryType | No | code | barcode / rfid / manual + |
| status | No | code | active / inactive / entered-in-error / unknown |
| statusReason | No | CodeableConcept[] | online / paused / standby / offline / not-ready / transduc-discon / hw-discon / off |
| distinctIdentifier | No | string | The distinct identification string |
| manufacturer | No | string | Name of device manufacturer |
| manufactureDate | No | dateTime | Date when the device was made |
| expirationDate | No | dateTime | Date and time of expiry of this device (if applicable) |
| lotNumber | No | string | Lot number of manufacture |
| serialNumber | No | string | Serial number assigned by the manufacturer |
| deviceName | No | DeviceDeviceName | The name of the device as given by the manufacturer |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - name | Yes | string | The name of the device |
| - type | Yes | code | udi-label-name / user-friendly-name / patient-reported-name / manufacturer-name / model-name / other |
| modelNumber | No | string | The model number for the device |
| partNumber | No | string | The part number of the device |
| type | No | CodeableConcept | The kind or type of device |
| specialization | No | DeviceSpecialization | The capabilities supported on a device, the standards to which the device conforms for a particular purpose, and used for the communication |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - systemType | Yes | CodeableConcept | The standard that is used to operate and communicate |
| - version | No | string | The version of the standard that is used to operate and communicate |
| version | No | DeviceVersion | The actual design of the device or software version running on the device |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - type | No | CodeableConcept | The type of the device version |
| - component | No | Identifier | A single component of the device version |
| - value | Yes | string | The version text |
| property | No | DeviceProperty | The actual configuration settings of a device as it actually operates, e.g., regulation status, time properties |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - type | Yes | CodeableConcept | Code that specifies the property DeviceDefinitionPropetyCode (Extensible) |
| - valueQuantity | No | Quantity[] | Property value as a quantity |
| - valueCode | No | CodeableConcept[] | Property value as a code, e.g., NTP4 (synced to NTP) |
| patient | No | Reference<Patient> | Patient to whom Device is affixed |
| owner | No | Reference<Organization> | Organization responsible for device |
| contact | No | ContactPoint[] | Details for human/organization for support |
| location | No | Reference<Location> | Where the device is found |
| url | No | uri | Network address to contact device |
| note | No | Annotation[] | Device notes and comments |
| safety | No | CodeableConcept[] | Safety Characteristics of Device |
| parent | No | Reference<Device> | The parent device |
