GDTI

The GS1 key dedicated to identifying documents.

Definition

The GDTI is made of the GS1 Company Prefix, a document type reference and a check digit, optionally followed by a serial component that makes each instance unique. It is carried by AI (253) in barcodes and messages.

Origin

Defined as a GS1 identification key in the GS1 General Specifications, maintained by GS1 AISBL.

Example in context

(253) 4012345987651 + serial component → identifies a specific warranty certificate issued by the company.

Related terms

• GS1 Company Prefix — prefix the GDTI is built on.
• GS1 GRAI — GS1 key for returnable assets.