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 400 for cases with tumor deposits but no identified lymph node metastases. If there are tumor deposits and positive nodes, assign the appropriate code based on the number of positive regional nodes. Do not add the number of tumor deposits to the number of positive regional lymph nodes if one or more lymph nodes contain cancer.
Code Description SS2018 N
000 No regional lymph node involvement NONE
300 - Cecal + Anterior (prececal) * Posterior (retrocecal) * Right colic - Colic, NOS - Epicolic (adjacent to bowel wall) - Ileocolic - Mesenteric, NOS - Mesocolic, NOS - Paracolic/pericolic RN
400 Tumor deposit(s) in subserosa or mesentery No regional lymph node metastasis 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
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