| 0 |
In situ: noninvasive, intraepithelial |
| 1 |
Localized only (localized, NOS)
- Invasion of submucosa |
| 2 |
Regional by direct extension only
- Adjacent connective tissue(s)
- Adjacent organ(s)/structure(s)
- Regional extension, NOS |
| 3 |
Regional lymph node(s) involved only
- Intra-abdominal
- Paracaval
- Pelvic
- Subdiaphragmatic
- 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 |
