CS Lymph Nodes

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

Code	Description	AJCC 7 N	TNM 6 N	Summary Stage 1977 N	Summary Stage 2000 N
000	No regional lymph node involvement	N0	NA	NONE	NONE
100	OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 105 and 300 Regional lymph node(s): Retroperitoneal, NOS Regional lymph node(s), NOS Stated as N1 with no other information on regional lymph nodes	N1	NA	RN	RN
105	Regional lymph node(s): Aortic, NOS: Para-aortic Periaortic Retroperitoneal, NOS Regional lymph node(s), NOS	N1	NA	RN	RN
110	Regional lymph node(s): Pericaval, NOS: Paracaval Precaval Retrocaval	N1	NA	D	RN
200	OBSOLETE DATA CONVERTED V0203 See code 105 Regional lymph node(s): Aortic Paraaortic Periaortic	ERROR:	ERROR:	ERROR:	ERROR:
300	Stated as N1 with no other information on regional lymph nodes	N1	NA	RN	RN
800	Lymph nodes, NOS	N1	NA	RN	RN
999	Unknown; regional lymph nodes not stated Regional lymph nodes cannot be assessed Not documented in patient record	NX	NA	U	U