| identifier | No | Identifier[] | Instance identifier |
| udiDeviceIdentifier | No | DeviceDefinitionUdiDeviceIdentifier | 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 | Yes | string | The identifier that is to be associated with every Device that references this DeviceDefintiion for the issuer and jurisdication porvided in the DeviceDefinition.udiDeviceIdentifier |
| - issuer | Yes | uri | The organization that assigns the identifier algorithm |
| - jurisdiction | Yes | uri | The jurisdiction to which the deviceIdentifier applies |
| manufacturer[x] | No | string, Reference<Organization> | Name of device manufacturer |
| deviceName | No | DeviceDefinitionDeviceName | A name given to the device to identify it |
| - 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 |
| type | No | CodeableConcept | What kind of device or device system this is |
| specialization | No | DeviceDefinitionSpecialization | 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 | string | 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 | string[] | Available versions |
| safety | No | CodeableConcept[] | Safety characteristics of the device |
| shelfLifeStorage | No | ProductShelfLife[] | Shelf Life and storage information |
| physicalCharacteristics | No | ProdCharacteristic | Dimensions, color etc. |
| languageCode | No | CodeableConcept[] | Language code for the human-readable text strings produced by the device (all supported) |
| capability | No | DeviceDefinitionCapability | Device capabilities |
| - 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 | Type of capability |
| - description | No | CodeableConcept[] | Description of capability |
| property | No | DeviceDefinitionProperty | 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) |
| owner | No | Reference<Organization> | Organization responsible for device |
| contact | No | ContactPoint[] | Details for human/organization for support |
| url | No | uri | Network address to contact device |
| onlineInformation | No | uri | Access to on-line information |
| note | No | Annotation[] | Device notes and comments |
| quantity | No | Quantity | The quantity of the device present in the packaging (e.g. the number of devices present in a pack, or the number of devices in the same package of the medicinal product) |
| parentDevice | No | Reference<DeviceDefinition> | The parent device it can be part of |
| material | No | DeviceDefinitionMaterial | A substance used to create the material(s) of which the device is made |
| - 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 |
| - substance | Yes | CodeableConcept | The substance |
| - alternate | No | boolean | Indicates an alternative material of the device |
| - allergenicIndicator | No | boolean | Whether the substance is a known or suspected allergen |
| classification | No | DeviceDefinitionClassification | What kind of device or device system this is |
| - 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 | A classification or risk class of the device model |
| - justification | No | RelatedArtifact[] | Further information qualifying this classification of the device model |
| bodySite | No | CodeableConcept | Target body site |
