Segment BII: STRUCTURE IDENTIFICATION
| Tag | BII | 
| Name | STRUCTURE IDENTIFICATION | 
| Func | A segment used to convey an indexing structure mechanism which identifies the positioning of a group or item. | 
Elemente
| Element/Gruppe | No/Code | Beschreibung | Opt/Mand. | 
|---|---|---|---|
| Element | 7429 | Code qualifying an indexing structure. | Mandatory | 
| Gruppe | C045 | A sequenced collection of facetted codes used for multiple indexing purposes. | Mandatory | 
| Element | 7140 | To identify an item. | Optional |