X12-DE-456

ASC X12 data element 456 — Hierarchical Structure Code.

Definition

Element 456 (Hierarchical Structure Code) is unique to the BSN segment of 856 (ASN). Codes: 0001 = Shipment, Order, Pack, Item; 0002 = Shipment, Order, Item; 0004 = Shipment, Order, Pack. Determines how HL parents/children nest.

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

BSN*00*SHIP-2026-001*20260514*1545*0001~ — 0001 structure (4 levels).

Related terms

• BSN — header segment of 856 carrying DE 456.
• HL — hierarchical segments organized by DE 456.