UDI carrier

A UDI carrier can be a linear or 2D barcode or RFID. Both the EU MDR and the FDA UDI rule require it on the label and, for some devices, as a direct marking.

means to convey the UDI by using automatic identification and data capture (AIDC) and, if applicable, its human readable interpretation (HRI) Note 1 to entry: UDI carriers can include 1D/linear bar code, 2D/Matrix bar code, RFID, etc. [SOURCE: MDRF/UDI WG/N7: 2013[13]]

ISO 20417:2021, clause 3.31