Collaborative Stage for TNM 7 - Revised 11/17/2009 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | None; no regional lymph node involvement | NA | N0 | NONE | NONE |
| 100 | Regional lymph node(s): Cystic duct (Calot's node) Node of foramen of Winslow (epiploic)(omental) Pericholedochal (common bile duct) | NA | N1 | RN | RN |
| 110 | Regional lymph node(s): Porta hepatis (portal) (hilar) [in hilus of liver] | NA | N1 | D | RN |
| 200 | Regional lymph node(s): Pancreaticoduodenal Periportal | NA | N1 | RN | RN |
| 210 | Regional lymph node(s): Periduodenal Peripancreatic (near head of pancreas only) | NA | N1 | D | RN |
| 300 | Regional lymph node(s), NOS | NA | N1 | RN | RN |
| 500 | Celiac | NA | N1 | D | RN |
| 600 | Superior mesenteric | NA | N1 | D | RN |
| 800 | Lymph nodes, NOS | NA | N1 | RN | RN |
| 999 | Unknown; not stated Regional lymph node(s) cannot be assessed Not documented in patient record | NA | NX | U | U |