Collaborative Stage

Collaborative Stage for TNM 7 - Revised 05/13/2011 [ Schema ]

NETStomach

CS Lymph Nodes

Note 1: Code only regional nodes and nodes, NOS in this field. Distant nodes are coded in CS Mets at DX.
Note 2: Hepatoduodenal nodes are regional for primaries of the lesser curvature of the stomach. They are coded in CS Mets at DX for all other subsites in this schema.
Note 3: If information about named regional lymph nodes is available, use codes 110, 400, or 420 rather than code 500 or 600.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	No regional lymph node involvement	N0	N0	NONE	NONE
050	Nodule(s) in perigastric fat	N1	*	RN	RN
100	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 000, 050, 110, CS Mets at DX codes 10, 50 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
110	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	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 with no other information on regional lymph nodes	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	N1	RN	RN
999	Unknown; regional lymph nodes not stated Regional lymph node(s) cannot be assessed Not documented in patient record	NX	NX	U	U

* For CS Lymph Nodes codes 050-500 and 800 ONLY, when CS Lymph Nodes Eval is 0, 1, 5, or 9, the N category is assigned as shown in the Lymph Nodes Clinical Evaluation Table, using Regional Nodes Positive and CS Site-Specific Factor 1; when CS Lymph Nodes Eval is 2, 3, 6, 8, or not coded, the N category is assigned as shown in the Lymph Nodes Pathologic Evaluation Table Also Used When CS Reg Nodes Eval Is Not Coded using Regional Nodes Positive.