Collaborative Stage Data Set - Revised 07/28/2010 FINAL
| Code | Description |
| 00 | All nodes examined negative. |
| 01-89 | 1 - 89 nodes positive (code exact number of nodes positive) |
| 90 | 90 or more nodes positive |
| 95 | Positive aspiration or core biopsy of lymph node(s) |
| 97 | Positive nodes - number unspecified |
| 98 | No nodes examined |
| 99 | Unknown if nodes are positive; not applicable Not documented in patient record |