| 0 |
In situ, intraepithelial, noninvasive |
| 1 |
Localized only (localized, NOS)
- Confined to site of origin |
| 2 |
Regional by direct extension only
- Adjacent connective tissue
- Adjacent organ(s)/structure(s)
+ Descending aorta
+ Esophagus
+ Large (named) artery(ies)
+ Large (named) vein(s)
+ Pericardium (parietal, visceral [pericardium])
+ Phrenic nerve(s)
+ Pleura (parietal, visceral, NOS)
+ Sternum
+ Sympathetic nerve trunk(s)
+ Thoracic duct
+ Thymus
+ Trachea
+ Vertebra(e) |
| 3 |
Regional lymph node(s) involved only
- 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
+ Lymph node(s), NOS |
| 4 |
Regional by BOTH direct extension AND regional lymph node(s) involved
- Codes (2) + (3) |
| 7 |
Distant site(s)/lymph node(s) involved
- Distant site(s) (including further contiguous extension)
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s) |
| 9 |
Unknown if extension or metastasis |
