GS1 Unique Device Identification (UDI)

Barcode Information | Tutorials | Examples

The GS1 UDI barcode combines the Device Identifier (DI), also known as the GTIN by, 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 DelimitersIdentifierData TypeHR Field SizeDB Field SizeExample Data
 (01)Device Identifier (DI)Numeric161451022222233336
 (11)Manufacturing/Production DateNumeric86 (YYMMDD)141231
 (17)Expiration DateNumeric86 (YYMMDD)150707
 (10)Batch/Lot NumberAlphanumeric2220A213B1
 (21)Serial NumberAlphanumeric22201234

The final human readable string for this example is: (01)51022222233336(11)141231(17)150707(10)A213B1(21)1234


GS1 UDI Data Matrix

Label Examples from

Linear Code 128 example:

Linear GS1 UDI Code 128 example

2D Data Matrix example:

2D GS1 UDI Data Matrix example