Collaborative Stage

Collaborative Stage for TNM 7 - Revised 12/11/2009 [ Schema ]

CS Lymph Nodes

Note: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field 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	Unilateral and bilateral: For all subsites: Anorectal Inferior hemorrhoidal Lateral sacral (laterosacral) Perirectal Stated as N1 with no other information on regional lymph nodes	N1	N1	RN	RN
200	Unilateral: For anal canal: Internal iliac (hypogastric) Obturator	N2	N2	RN	RN
210	Unilateral: For anus: Internal iliac (hypogastric) Obturator	N2	N2	D	RN
300	Unilateral: For anal canal: Superficial inguinal (femoral)	N2	N2	RN	RN
310	Unilateral: For anus: Superficial inguinal (femoral)	N2	N2	D	RN
350	Stated as N2 with no other information on regional lymph nodes	N2	N2	RN	RN
400	(200) + (300)	N2	N2	RN	RN
410	(100) + (300)	N3	N3	RN	RN
420	(100) + (310)	N3	N3	D	RN
500	Bilateral: For anal canal: Internal iliac (hypogastric) Obturator Superficial inguinal (femoral)	N3	N3	RN	RN
510	Bilateral: For anus: Internal iliac (hypogastric) Obturator Superficial inguinal (femoral)	N3	N3	D	RN
550	Stated as N3 with no other information on regional lymph nodes	N3	N3	RN	RN
600	Regional lymph node(s), NOS	N1	N1	RN	RN
800	Lymph nodes, NOS	N1	N1	RN	RN
999	Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record	NX	NX	U	U