Collaborative Stage

Collaborative Stage for TNM 7 - Revised 11/16/2009 [ Schema ]

CS Lymph Nodes

Note 1: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field Mets at DX.
Note 2: Code the size of the metastasis in the lymph node as documented in the pathology report to determine codes 100-300, not the size of the lymph node itself. If the size of the metastasis is not documented, code the size of the involved lymph node itself as documented pathologically or clinically with pathology taking priority. Do not code the size of any nodes coded in CS Mets at DX.
Note 3: Regional nodes include bilateral and contralateral involvement of named nodes.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	No regional lymph node involvement	N0	N0	NONE	NONE
100	Single regional lymph node, less than or equal to 2 cm: Iliac, NOS: Common External Internal (hypogastric), NOS: Obturator Inguinal, NOS: Deep Node of Cloquet or Rosenmuller (highest deep inguinal) Superficial (femoral) Pelvic, NOS Sacral, NOS Presacral Regional lymph node, NOS Stated as N1 with no other information on regional lymph nodes	N1	N1	RN	RN
200	Regional lymph node(s) as listed in code 100: Single regional lymph node greater than 2 cm but less than or equal to 5 cm OR Multiple regional nodes, none greater than 5 cm	N2	N2	RN	RN
300	Regional lymph node(s) as listed in code 100: Regional lymph node(s), at least one greater than 5 cm	N2	N2	RN	RN
400	Stated as N2 with no other information on regional lymph nodes	N2	N2	RN	RN
500	Regional lymph node(s), NOS (size and/or number not stated)	N1	N1	RN	RN
800	Lymph nodes, NOS	N1	N1	RN	RN
999	Unknown; not stated Regional lymph nodes cannot be assessed Not documented in patient record	NX	NX	U	U