Collaborative Stage Data Set - Revised 04/05/2013 FINAL
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | No lymph node involvement (No clinical adenopathy and either pathologically negative or no pathological statement) | NA | NA | U | NONE |
| 100 | Clinically enlarged palpable lymph node(s) (adenopathy), and either pathologically negative nodes or no pathological statement | NA | NA | U | RN |
| 200 | No clinically enlarged palpable lymph node(s) (adenopathy) but pathologically positive lymph node(s) | NA | NA | U | RN |
| 300 | Both clinically enlarged palpable lymph node(s) (adenopathy) and pathologically positive lymph nodes Lymph nodes, NOS | NA | NA | U | RN |
| 999 | Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record | NA | NA | U | U |