EOD Regional Nodes

Notes

**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **Note 2:** Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.
Code Description SS2018 N
000 No regional lymph node involvement NONE
300 Anterior to ampulla of Vater Inferior to ampulla of Vater Posterior to ampulla of Vater Superior to ampulla of Vater Celiac Hepatic Hepatic artery Lateral aortic (lumbar) Node of foramen of Winslow (epiploic) (omental) Pancreaticoduodenal Peripancreatic (excluding nodes at tail of pancreas) Periportal (portal vein) Proximal mesenteric Pyloric (infrapyloric, subpyloric) Retroperitoneal Superior mesenteric RN
800 Regional lymph node(s), NOS Lymph node(s), NOS RN
999 Unknown; regional lymph node(s) not stated Regional lymph node(s) cannot be assessed Not documented in medical record Death Certificate Only U
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