Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/31/2010 [ Schema ]

CS Mets at DX

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: Pericholedochal (nodes of the common bile duct), superior mesenteric, and pyloric nodes are classified as distant for AJCC 7 staging. These nodes are now coded in CS Mets at DX.

Code	Description	TNM 7th Map	TNM 6th Map	SS77 Map	SS2000 Map
00	No distant metastasis	M0	M0	NONE	NONE
07	Distant lymph node(s): Pericholedochal (common bile duct) Superior mesenteric Pyloric: Infrapyloric Retropyloric Subpyloric Suprapyloric	M1	M0	RN	RN
10	Distant lymph node(s) other than in code 07 Distant lymph node(s) , NOS	M1	M1	D	D
20	10 + 07 Distant lymph node(s) in code 10 plus distant lymph node(s) in code 07	M1	M1	D	D
40	Distant metastasis except distant lymph node(s) Seeding of peritoneum, even if limited to the lesser sac region Positive peritoneal cytology Carcinomatosis	M1	M1	D	D
45	40 + 07 Distant metastasis plus distant lymph node(s) in code 07	M1	M1	D	D
50	40 + 10 Distant metastasis plus distant lymph node(s) 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