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**: Celiac axis and splenic nodes are classified as distant nodes for AJCC 7 staging and 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 Lymph Nodes Mets at DX AJCC6 NONE NONE
100 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 000 and 110 and CS Mets at DX codes 05, 07, 20, and 45

Regional lymph nodes:
Celiac
Gastroepiploic (gastro-omental), left
Hepatic
Infrapyloric (subpyloric)
Lateral aortic (lumbar)
Peripancreatic, NOS:
Anterior, NOS:
Anterior pancreaticoduodenal
Anterior proximal mesenteric
Pyloric
Inferior to the head and body of pancreas
Posterior, NOS:
Pericholedochal (common bile duct)
Posterior pancreaticoduodenal
Posterior proximal mesentery
Superior to the head and body of pancreas
Retroperitoneal
Superior mesenteric
Regional lymph node(s), NOS
N1 N1 RN RN
110 Regional lymph nodes:
Hepatic
Lateral aortic (lumbar)
Peripancreatic, NOS:
Anterior, NOS:
Anterior pancreaticoduodenal
Anterior proximal mesenteric
Pyloric
Inferior to the head and body of pancreas
Posterior, NOS:
Pericholedochal (common bile duct)
Posterior pancreaticoduodenal
Posterior proximal mesentery
Superior to the head and body of pancreas
Pyloric:
Infrapyloric
Retropyloric
Suprapyloric
Subpyloric
Retroperitoneal
Superior mesenteric
Regional lymph node(s), NOS
N1 N1 RN RN
200 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 000 and 110 and CS Mets at DX codes 07, 20, 45

Pancreaticosplenic (pancreaticolienal)
Splenic (lienal), NOS
Superior hilum
Suprapancreatic
N1 N1 D D
250 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 Lymph Nodes Mets at DX AJCC6 U U
- For CS Lymph Nodes codes 000 and 999, the N category for AJCC 6 staging is based on the value of CS Mets at DX as shown in the CS Lymph Nodes Mets at DX AJCC 6 Table for this schema.