Collaborative Stage

Collaborative Stage for TNM 7 - Revised 12/03/2009 [ Schema ]

NETStomach

CS Lymph Nodes

Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field Mets at DX.
Note 2: If information about named regional lymph nodes is available, use codes 100, 400, 420, or 500, rather than code 600.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	None; no regional lymph node involvement	N0	N0	NONE	NONE
100	Regional lymph nodes: Left gastric (superior gastric), NOS: Cardial Cardioesophageal Gastric, left Gastropancreatic, left Lesser curvature Lesser omental Paracardial Pancreaticosplenic (pancreaticolienal) Pancreatoduodenal Perigastric, NOS Peripancreatic Right gastric (inferior gastric), NOS: Gastrocolic Gastroduodenal Gastroepiploic (gastro-omental), right or NOS Gastrohepatic Greater curvature Greater omental Pyloric, NOS Infrapyloric (subpyloric) Suprapyloric Splenic (lienal), NOS: Gastroepiploic (gastro-omental), left Splenic hilar Superior mesenteric Nodule(s) in perigastric fat	N1	*	RN	RN
400	Celiac Hepatic (excluding gastrohepatic, [see code 100] and hepatoduodenal [see code 420])	N1	*	D	RN
420	For lesser curvature only: Hepatoduodenal	N1	*	D	D
500	Regional lymph nodes, NOS	N1	*	RN	RN
600	Stated as N1, NOS	N1	N1	RN	RN
650	OBSOLETE DATA RETAINED V0200 Stated as N2, NOS	ERROR	N2	RN	RN
700	OBSOLETE DATA RETAINED V0200 Stated as N3, NOS	ERROR	N3	RN	RN
800	Lymph nodes, NOS	N1	*	RN	RN
999	Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record	NX	NX	U	U

* For codes 100-500 and 800 ONLY: when CS Lymph Nodes Eval is 0, 1, 5, or 9, the N category is assigned from the Lymph Nodes Clinical Evaluation Table, using Reg LN Pos and CS Site-Specific Factor 1; when CS Lymph Nodes Eval is 2, 3, 6, 8, or not coded, the N category is determined from the Lymph Nodes Pathologic Evaluation Table Also Used When CS Reg Nodes Eval is Not Coded using Reg LN Pos.