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X12-DE-66

ASC X12 data element 66 — Identification Code Qualifier.

Definition

Element 66 (ID Code Qualifier) uses codes such as 01 = DUNS, 14 = DUNS+4, 24 = EIN/FEIN, 30 = ISO 6523, 33 = NAIC, ZZ = mutually defined. Present in the N1 (Name) segment in position N101 to identify the kind of the ID carried in N104.

Origin

Published by ASC X12 in the Data Element Dictionary (TS 838). Maintained under ANSI ASC X12 governance with semi-annual reviews.

Example in context

N1*BY*ACME CORP*01*123456789~ — Buyer party, qualifier 01 (DUNS).

  • X12 DE 67 — related identification code.
  • N1 — segment carrying DE 66.

Last updated: May 15, 2026