| 0 |
In situ: noninvasive, intraepithelial |
| 1 |
Localized only (localized, NOS)
- Confined to thymus, NOS
- No mediastinal or pleura involvement or UNKNOWN if involved |
| 2 |
Regional by direct extension only
- Brachiocephalic vein
- Chest wall
- Confined to thymus WITH mediastinal or pleural involvement
- Direct invasion of pericardium
- Extrapericardial pulmonary artery or vein
- Lung
- Phrenic nerve
- Superior vena cava |
| 3 |
Regional lymph node(s) involved only
- Ascending aorta
- Cervical (low anterior)
- Hilar
- Internal mammary
- Lower jugular
- Mediastinal (lower, middle, NOS)
- Para-aortic
- Paratracheal (lower, upper, NOS)
- Peri-thymic
- Peri-thyroid
- Pericardial
- Phrenic (inferior, superior)
- Precricoid/delphian
- Pretracheal
- Prevascular
- Subaortic/aortopulmonary window
- Subcarinal
- Supraclavicular/venous angle: confluence of internal jugular and subclavian vein
- 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)
+ Extrathoracic sites
+ Separate pleural or pericardial nodule(s)
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s)
* OR with pleural or pericardial nodule(s) metastasis |
| 9 |
Unknown if extension or metastasis |
