| 0 |
In situ: noninvasive, intraepithelial |
| 1 |
Localized only (localized, NOS)
- Invasive tumor confined to gland of origin |
| 2 |
Regional by direct extension only
- Adjacent connective tissue
- Adjacent organs/structures
+ Aortic body
* Organs/structures in mediastinum
+ Carotid body
* Upper neck |
| 3 |
Regional lymph node(s) involved only
- Cervical for carotid body
- Mediastinal for aortic body
- 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 |
