BUDI Generator

IFA Check Digit Generator for Basic UDI

The basic UDI (BUDI) is the main key for grouping those products of a manufacturer that have the same properties. Manufacturers generate the basic UDI from the following four substring elements, which are described in detail in chapter 3.5. of Specification UDI Use of the IFA Coding System for MD:

Your 5-digit CIN, also known as IFA Supplier Number, is available by requesting an address list on Request for EAD, product and address data.

Here you can find Technical Information on PZN Coding -Check Digit Calculations-.

To generate the 2-digit Check Digit for the basic UDI, please fill in the respective fields and click on the button to create BUDI. The 2-digit IAC PP is automatically prefixed. Please use the BUDI without spaces.

Please enter the 5-digit IFA Supplier Number.
Please enter a Device Group Code to a maximum of 16 digits (0-9, A-Z or „.“).


Multiple answers to your questions about Unique Device Identification (UDI) and the use of the PPN as UDI-DI, can be found in the lower part of the FAQ

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