Collaborative Stage for TNM 7 - Revised 12/31/2009 [ Schema ]
| Code | Description |
| 000 | No tumor necrosis |
| 001-100 | Percent tumor necrosis 10% = 010 99% = 099 5% = 005 0.1 to 0.9 % = 001 round up |
| 888 | OBSOLETE DATA CONVERTED V0200 Not applicable for this site |
| 988 | Not applicable: Information not collected for this case (May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.) |
| 990 | Tumor necrosis present, percent not stated |
| 998 | No histologic examination of primary site AND/OR No neoadjuvant chemotherapy |
| 999 | Unknown Not stated Not documented in patient record |