Collaborative Stage

Collaborative Stage for TNM 7 - Revised 10/04/2010 [ Schema ]

CarcinoidAppendix

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: Superior and inferior mesenteric nodes are coded in CS Mets at DX. Mesenteric nodes, NOS are coded in CS Lymph Nodes.

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: Colic, NOS Epicolic (adjacent to bowel wall) Mesocolic, NOS Paracolic/pericolic	N1	*	RN	RN
200	Cecal: Anterior (prececal) Posterior (retrocecal) Ileocolic Right colic	N1	*	RN	RN
300	Mesenteric, NOS Regional lymph node(s), NOS	N1	*	RN	RN
400	Stated as N1 with no other information on regional lymph nodes	N1	N1	RN	RN
450	OBSOLETE DATA RETAINED V0200 Stated as N2 pathologic	ERROR	N2	RN	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

* For CS Lymph Nodes codes 100-300 ONLY: when CS Lymph Nodes Eval is 0, 1, 5, or 9, the N category is assigned from the Lymph Nodes Clinical Evaluation AJCC 6 Table, using Regional Nodes Positive and CS Site-Specific Factor 2; when CS Lymph Nodes Eval is 2, 3, 6, 8, or not coded, the N category is determined from the Lymph Nodes Pathologic Evaluation 6 Table Also Used When CS Reg Nodes Eval is Not Coded using Regional Nodes Positive.