CS Mets at DX

Notes

**Note 1**: The lesser sac of the peritoneum, or omental bursa, is the cavity in the abdomen formed by the lesser and greater omentum; the pancreas forms part of the posterior wall of the lesser sac. **Note 2**: Celiac axis and splenic nodes are classified as distant for AJCC 7 staging. These nodes are now coded in CS Mets at DX.
Code Description AJCC 7 M AJCC 6 M Summary Stage 1977 M Summary Stage 2000 M
00 No distant metastasis M0 M0 NONE NONE
05 Distant lymph nodes:
Celiac axis		 M1 M0 RN RN
07 Distant lymph nodes:
Pancreaticosplenic (pancreaticolienal)
Splenic (lineal), NOS
Splenic hilum
Splenic artery
Gastroepiploic (gastro-omental), left
Suprapancreatic 		M1 M0 D D
10 Distant lymph node(s) other than in codes 05, 07
Distant lymph nodes, NOS		 M1 M1 D D
20 10 + (05, 07) M1 M1 D D
40 Distant metastasis except distant lymph node(s)
(Includes seeding of peritoneum, even if limited to the lesser sac region; positive peritoneal cytology)
Carcinomatosis		 M1 M1 D D
45 40 + (05, 07)

Distant metastasis plus distant lymph nodes in codes 05, 07		 M1 M1 D D
50 40 + 10

Distant metastasis plus distant lymph nodes in code 10		 M1 M1 D D
60 Distant metastasis, NOS

Stated as M1 with no other information on distant metastasis		 M1 M1 D D
99 Unknown; distant metastasis not stated
Distant metastasis cannot be assessed
Not documented in patient record		 M0 MX U U