Collaborative Stage Data Set - Revised 05/20/2011 FINAL
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | OBSOLETE DATA RETAINED V0200 None; no regional lymph node involvement | ERROR | NA | NONE | NONE |
| 100 | OBSOLETE DATA RETAINED V0200 Regional lymph nodes Cervical for carotid body and parathyroid only Mediastinal for aortic body and thymus only | ERROR | NA | RN | RN |
| 800 | OBSOLETE DATA RETAINED V0200 Lymph nodes, NOS | ERROR | NA | RN | RN |
| 988 | Not applicable for this schema | NA | NA | U | U |
| 999 | OBSOLETE DATA RETAINED V0200 Unknown; not stated Regional lymph nodes cannot be assessed Not documented in patient record | ERROR | NA | U | U |