Collaborative Stage Data Set - Revised 07/18/2011 FINAL
| Code | Description |
| 000 | No tumor necrosis |
| 001-100 | 1 - 100 percent (Exact percentage of tumor necrosis to nearest percent) Examples: 001 0.1 to 0.9% 005 5% 010 10% 099 99% |
| 888 | OBSOLETE DATA CONVERTED V0200 See code 988 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 or no information Not documented in patient record |