| 0 |
In situ, intraepithelial, noninvasive |
| 1 |
Localized only (localized, NOS)
- Confined to site of origin |
| 2 |
Regional by direct extension only
- Adjacent (connective) tissue, NOS |
| 3 |
Regional lymph node(s) involved only
- 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)
+ Adherent to organs/structure, NOS
+ Extension to organs/structures, NOS
+ Liver parenchymal nodules
+ Peritoneal nodules
- Distant lymph node(s), NOS
- Distant metastasis, NOS
+ Carcinomatosis
+ Distant metastasis WITH or WITHOUT distant lymph node(s) |
| 9 |
Unknown if extension or metastasis |
