NPC Codes (2004 draft)
| CODE | Code | NPC Code | |
| HIERARCHY | Hierarchy | Hierarchy | |
| NAME | Name | Name | |
| DEFINITION | Definition | Definition | |
| USE_REFERENCE | Use reference | Use reference | |
| SEE_ALSO | See also | See also | |
| BROADER | Broader | Broader | |
| NARROWER | Narrower | Narrower | |
| changeDate | Change date | Date record changed or created | |
| Examples | Examples | Examples | |
| Scope_notes | Scope notes | Scope notes | |
| notes | User notes | User notes | |
| NTEE | Revised NTEE XP code | Four-digit NTEE XP code. |