UDI-DI (Device Identifier) and UDI-PI (Production Identifier)

UDI-DI is a unique numeric or alphanumeric code specific to a device model, which is also used as an “access key” to registered information in the UDI database.

Note: UDI-DI is currently the GTIN (Global Trade Item Number) obtained from organizations such as GS1.

UDI-PI is a numeric or alphanumeric code that reflects how the device is controlled and provides related information.

Different Production Identifiers can include any combination of serial number, lot/ batch number, manufacturing or expiration date.