Collaborative Stage for TNM 7 - Revised 12/08/2009 [ Schema ]
Colon
Lymph Nodes Pathologic Evaluation 7th Table Also Used When CS Reg Nodes
Eval is Not Coded
- Note: This table is used when CS Lymph Nodes is 100-300, or 800 and CS Regional Nodes Eval is 2, 3, 6, 8, or not coded. The N category is determined based on the number of positive regional nodes in Reg LN Pos.
| Reg Ln Pos | Code |
| 00-00 | N1NOS |
| 01-01 | N1a |
| 02-03 | N1b |
| 04-06 | N2a |
| 07-90 | N2b |
| 95-99 | N1NOS |