Collaborative Stage for TNM 7 - Revised 01/17/2010 [ Schema ]
| Code | Description |
| 000 | All regional lymph nodes are negative |
| 010 | Unilateral - all positive regional nodes are ipsilateral |
| 020 | Bilateral or contralateral - at least one positive regional lymph node is bilateral or contralateral |
| 030 | Regional lymph node(s) positive - laterality unknown |
| 988 | Not applicable: Information not collected for this case |
| 998 | Lymph nodes not examined |
| 999 | Unknown Not Documented in Patient's Record |