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. They are now coded in CS Lymph Nodes. **Note 3**: Periduodenal and peripancreatic nodes are regional for tumors in the right liver, and gastrohepatic nodes are regional for tumors in the left liver, for AJCC 7 staging. Use codes 120 and 130 only for regional nodes specific to the involved lobe of liver. Use code 140 if both lobes of liver are involved and periduodenal/peripancreatic and gastrohepatic nodes are involved. **Note 4**: Caval nodes are classified as distant nodes and 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 Lymph Nodes Mets at DX AJCC6 - returning N NONE NONE
100 OBSOLETE DATA RETAINED AND REVIEWED V0203
Gastrohepatic nodes are regional for tumors in left liver in AJCC 7. Caval nodes are distant in AJCC 7. See codes 000, 110, 120, 310, and CS Mets at DX codes 07, 14, 17, 20, and 58.

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 Lymph Nodes Mets at DX AJCC6 - returning N RN RN
110 Regional lymph nodes:
Hilar:
Common bile duct
Cystic duct
Hepatic, NOS:
Hepatic artery
Hepatic pedicle
Hepatoduodenal ligament
Portal vein:
Porta hepatis
Periportal
Regional lymph node(s), NOS		 N1 Lymph Nodes Mets at DX AJCC6 - returning N RN RN
120 Regional lymph nodes:
Primary tumor in left liver (segments 2-4) or lobe of liver not stated:
Gastrohepatic		 N1 Lymph Nodes Mets at DX AJCC6 - returning N D D
130 Regional lymph nodes:
Primary tumor in right liver (segments 5-8) or lobe of liver not stated:
Periduodenal
Peripancreatic		 N1 Lymph Nodes Mets at DX AJCC6 - returning N D D
140 120 +130

Regional lymph nodes:
Primary tumor involving both lobes of liver:
Gastrohepatic
Periduodenal
Peripancreatic		 N1 Lymph Nodes Mets at DX AJCC6 - returning N D D
200 Regional lymph nodes:
Inferior phrenic nodes		 N1 Lymph Nodes Mets at DX AJCC6 - returning N D D
300 OBSOLETE DATA REVIEWED V0203
See codes 200, 310 and CS Mets at DX codes 07, 14, 17, 20, 55, and 58

(100) + (200)		 N1 Lymph Nodes Mets at DX AJCC6 - returning N D D
310 (120, 130, 140, and/or 200) + 110

Any nodes in codes 120, 130, 140, and 200 plus nodes in code 110		 N1 Lymph Nodes Mets at DX AJCC6 - returning N D D
500 Stated as N1 with no other information on regional lymph nodes N1 Lymph Nodes Mets at DX AJCC6 - returning N RN RN
800 Lymph nodes, NOS N1 Lymph Nodes Mets at DX AJCC6 - returning N RN RN
999 Unknown; regional lymph nodes not stated
Regional lymph node(s) cannot be assessed
Not documented in patient record		 NX Lymph Nodes Mets at DX AJCC6 - returning N U U
- For CS Lymph Nodes codes 000-999, the N and M categories for AJCC 6 staging are assigned based on the coding of CS Lymph Nodes and CS Mets at DX as shown in the Lymph Nodes Mets at DX AJCC 6 Table for this schema.