Collaborative Stage for TNM 7 - Revised 09/28/2009 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | No regional lymph node involvement | N0 | N0 | NONE | NONE |
| 150 | Regional lymph nodes: Cystic duct (node of the neck of the gallbladder) (Calot's node) Hepatic Hilar (in the hepatoduodenal ligament) Node of the foramen of Winslow (omental) (epiploic) Pancreaticoduodenal Pericholedochal (node around common bile duct) Periduodenal Peripancreatic (near head of pancreas only) Periportal Porta hepatis (portal) (hilar) (in hilus of liver) Regional lymph nodes, NOS | N1 | N1 | RN | RN |
| 350 | Regional lymph nodes: Celiac Superior mesenteric | N1 | N1 | D | D |
| 500 | Stated as N1 [NOS] | N1 | N1 | RN | RN |
| 800 | Lymph nodes, NOS | N1 | N1 | RN | RN |
| 999 | Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record | NX | NX | U | U |