EOD Regional Nodes

This input is used for staging

Notes

**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **Note 2:** Splenic lymph nodes and those located at the tail of the pancreas are not regional and should be coded in EOD Mets. **Note 3:** Regional lymph nodes include 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

Default

999

NAACCR Item

NAACCR #774
Code Description SS2018 N
000 No regional lymph node involvement NONE
300 1-3 positive regional lymph node(s) RN
400 4 or more positive regional lymph nodes 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 patient record Death Certificate Only U
(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998 (2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001. (3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL) (4) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 3-30 (5) Herman, J.M., Pawlik, T.M., Vauthey, J.N., et al. **Ampulla of Vater**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 327-335