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# udiDeviceIdentifier

The device identifier portion of the US Food and Drug Administration’s Unique Device Identifier (UDI).

```
var udiDeviceIdentifier: String? { get }
```

## Discussion

The UDI identifies medical devices. You can look up additional information about the device at [AccessGUDID](http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/UniqueDeviceIdentification/GlobalUDIDatabaseGUDID/ucm444831.htm). For more information, see [FDA Unique Device Identification](http://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/UniqueDeviceIdentification/default.htm).

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