CS Lymph Nodes: Small Intestine

Note: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field Mets at DX.

Code	Description	TNM	SS77	SS2000
00	None; no regional lymph node involvement	N0	NONE	NONE
10	Regional lymph node(s): For duodenum primaries only: Duodenal Gastroduodenal Hepatic Infrapyloric (subpyloric) Pancreaticoduodenal Pyloric For jejunum or ileum primaries only: Ileocolic for terminal ileum primary Mesenteric, NOS Posterior cecal (retrocecal) for terminal ileum primary Superior mesenteric	N1	RN	RN
20	Regional lymph node(s) for duodenum primaries only: Pericholodochal (common bile duct) Superior mesenteric (See code 11 in CS Mets at DX for other lymph nodes of of small intestine)	N1	D	RN
30	Regional lymph node(s), NOS	N1	RN	RN
80	Lymph nodes, NOS	N1	RN	RN
99	Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record	NX	U	U