The GS1 UDI barcode combines the Device Identifier (DI), also known as the GTIN by GS1.org, which would be a static portion to the barcode and then the Production Identifier (PI), which would be a dynamic portions to the barcode, including Application Identifiers such as Serial (AI-21), Lot Number (AI-10) and Expiration Dates (AI-17). The GS1 UDI can be created as a GS1-128 or a GS1 DataMatrix, depending on space allotment on the label.
NOTE: When generating UDI symbols, IDAutomation recommends testing the result with the Data Decoder App which parses out GS1 data to verify proper encoding.
Data Delimiters | Identifier | Data Type | HR Field Size | DB Field Size | Example Data |
(01) | Device Identifier (DI) | Numeric | 16 | 14 | 51022222233336 |
(11) | Manufacturing/Production Date | Numeric | 8 | 6 (YYMMDD) | 141231 |
(17) | Expiration Date | Numeric | 8 | 6 (YYMMDD) | 150707 |
(10) | Batch/Lot Number | Alphanumeric | 22 | 20 | A213B1 |
(21) | Serial Number | Alphanumeric | 22 | 20 | 1234 |
The final human readable string for this example is: (01)51022222233336(11)141231(17)150707(10)A213B1(21)1234