CS Lymph Nodes

Notes

**Note 1**: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in the field CS Mets at DX. **Note 2**: Regional nodes include unilateral, bilateral or contralateral involvement of named node(s).
Code Description AJCC 7 N TNM 6 N Summary Stage 1977 N Summary Stage 2000 N
000 No regional lymph node involvement N0 N0 NONE NONE
100 SINGLE regional lymph node:
Aortic, NOS:
Lateral (lumbar)
Para-aortic
Periaortic
Preaortic
Retroaortic
Renal hilar
Retroperitoneal, NOS
Regional lymph node(s), NOS		 N1 N1 RN RN
110 SINGLE regional lymph node:
Interaortocaval
Pericaval, NOS
Paracaval
Precaval
Retrocaval		 N1 N1 D RN
150 OBSOLETE DATA CONVERTED V0203
See code 210

110 + 100

Single regional lymph node as specified in code 110 plus single regional lymph node as specified in code 100		 ERROR: ERROR: ERROR: ERROR:
200 MULTIPLE regional lymph nodes listed in code 100 N1 N2 RN RN
210 MULTIPLE regional nodes, any listed in code 110
WITH or WITHOUT nodes listed in code 100		 N1 N2 D RN
400 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 200 and 210

More than one regional lymph node other than as defined in code 150		 N1 N2 D RN
700 Regional lymph nodes, NOS
Not stated if single or multiple

Stated as N1 with no other information on regional lymph nodes		 N1 N1 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