CS Lymph Nodes

Notes

**Note 1**: Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in CS Mets at DX. **Note 2**: Inferior phrenic nodes are classified as regional nodes for AJCC 7 staging.
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 Regional lymph nodes:
Hepatic, NOS:
Hepatic artery
Hepatic pedicle
Inferior vena cava
Porta hepatis (hilar) (in hilus of liver)
Hepatoduodenal ligament
Periportal
Portal vein
Regional lymph node(s), NOS
N1 N1 RN RN
200 Inferior phrenic nodes N1 N0 D D
300 200 + 100 N1 N1 D D
350 Stated as N1 with no other information on regional lymph nodes N1 N1 RN RN
800 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 350, 805

Lymph nodes, NOS
Stated as N1 [NOS]
N1 N1 RN RN
805 Lymph nodes, NOS N1 N1 RN RN
999 Unknown; regional lymph nodes not stated
Regional lymph node(s) cannot be assessed
Not documented in patient record
NX NX U U