Collaborative Stage Data Set - Revised 08/07/2013 FINAL
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | No regional lymph node involvement | NA | NA | NONE | NONE |
| 100 | Regional lymph nodes: Aortic (above diaphragm), NOS: Peri/para-aortic, NOS: Ascending aorta (phrenic) Subaortic (aortico-pulmonary window) Carinal (tracheobronchial) (tracheal bifurcation) Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Intrapulmonary, NOS: Interlobar Lobar Segmental Subsegmental Mediastinal, NOS: Anterior Posterior (tracheoesophageal) Peri/parabronchial Pericardial Peri/paraesophageal Peri/paratracheal, NOS: Azygos (lower peritracheal) Pre- and retrotracheal, NOS: Precarinal Pulmonary ligament Subcarinal Regional lymph node(s), NOS | NA | NA | RN | RN |
| 800 | Lymph nodes, NOS | NA | NA | RN | RN |
| 999 | Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not documented in patient record | NA | NA | U | U |