Collaborative Stage Data Set - Revised 08/07/2013 FINAL
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 000 | No regional lymph node involvement | NA | N0 | NONE | NONE |
| 100 | Regional lymph node(s): Cystic duct (node of Calot) Node of foramen of Winslow (epiploic) (omental) Pericholedochal (common bile duct) | NA | N1 | RN | RN |
| 110 | Regional lymph node(s): Porta hepatis (portal) (periportal) (hilar) | NA | N1 | RN | RN |
| 150 | Regional lymph node(s): Pancreaticoduodenal | NA | N1 | RN | RN |
| 160 | 150 + 110 | NA | N1 | RN | RN |
| 200 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 110, 150 and 160 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 | OBSOLETE DATA CONVERTED V0203 See code 700 Regional lymph node(s), NOS | ERROR | ERROR | ERROR | ERROR |
| 500 | Regional lymph node(s): Celiac | NA | N1 | D | RN |
| 600 | Regional lymph node(s): Superior mesenteric | NA | N1 | D | RN |
| 700 | Regional lymph nodes, NOS | NA | N1 | RN | RN |
| 800 | Lymph nodes, NOS | NA | N1 | RN | RN |
| 999 | Unknown; regional lymph nodes not stated Regional lymph node(s) cannot be assessed Not documented in patient record | NA | NX | U | U |