Collaborative Stage Data Set - Revised 08/07/2013 FINAL

NETAmpulla

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: Splenic lymph nodes and those located at the tail of the pancreas are not considered regional and should be coded under CS Mets at DX.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	No regional lymph node involvement	N0	N0	NONE	NONE
100	Regional lymph nodes: Hepatic Hepatic artery Node of the foramen of Winslow (epiploic) (omental) Pancreaticoduodenal Peripancreatic (except at tail of pancreas, see CS Mets at DX) Periportal Lymph nodes: Anterior to the ampulla of Vater Inferior to the ampulla of Vater Posterior to the ampulla of Vater Superior to the ampulla of Vater Regional lymph node(s), NOS Stated as N1 with no other information on regional lymph nodes	N1	N1	RN	RN
110	Regional lymph nodes: Celiac Infrapyloric (subpyloric) Lateral aortic (lumbar) Proximal mesenteric Retroperitoneal Superior mesenteric	N1	N1	D	RN
800	Lymph nodes, NOS	N1	N1	RN	RN
999	Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not documented in patient record	NX	NX	U	U