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:** For Colon and Rectum ONLY, any unnamed nodes that are removed with a colon or rectal resection are presumed to be regional pericolic or perirectal lymph nodes and are included in the EOD Regional Nodes code 300 (pericolic for sites C180 - C189, C199 and perirectal for sites C199 or C209). This site-specific instruction applies only to colon and rectum tumors and was verified with subject matter experts. **Note 3:** Code 200 is defined as “PATHOLOGICAL assessment only.” This is used when * Primary tumor or site surgically resected with * Any positive microscopic examination of tumor deposits WITHOUT positive lymph nodes * If there are also positive lymph nodes, code 300Default
999NAACCR Item
NAACCR #774| Code | Description | SS2018 N |
|---|---|---|
| 000 | No regional lymph node involvement and no tumor deposits (TD) | NONE |
| 200 | PATHOLOGICAL assessment only Tumor deposits (TD) in the subserosa, mesentery, mesorectal or nonperitonealized pericolic or perirectal tissues WITHOUT regional nodal metastasis | RN |
| 300 | All colon subsites (C180, C182-C189) - Colic, NOS - Epicolic (adjacent to bowel wall) - Mesenteric, NOS - Mesocolic, NOS - Paracolic - Pericolic Cecum (C180) - Cecal, NOS + Anterior cecal (prececal) + Posterior cecal (retrocecal) - Colic (right) - Ileocolic - Periappendiceal Ascending colon (C182) - Colic (middle-right branch, right) - Ileocolic Hepatic flexure (C183) - Colic (middle, right) - Ileocolic Transverse colon (C184) - Colic (middle) Splenic flexure (C185) - Colic (left, middle) - Mesenteric (inferior) Descending colon (C186) - Colic (left) - Mesenteric (inferior) - Sigmoid Sigmoid colon (C187) - Colic (left) - Mesenteric (inferior) - Rectal (superior) (hemorrhoidal) - Rectosigmoid - Sigmoid (sigmoidal) (sigmoid mesenteric) - Superior rectal (hemorrhoidal) Rectosigmoid (C199) - Hemorrhoidal (middle, superior) - Mesenteric (inferior) - Mesorectal - Pericolic - Perirectal - Rectal (middle, superior) - Sigmoid (mesenteric) Rectum (C209) - Hemorrhoidal (middle, superior) - Iliac (hypogastric, internal, obturator) (see EOD Mets for common, external, NOS) - Mesenteric (inferior) - Mesorectal - Perirectal - Rectal (inferior) - Sacral, NOS + Lateral sacral (laterosacral) + Middle sacral (promontorial) (Gerota's node) + Presacral - Sigmoidal (sigmoid mesenteric) | RN |
| 800 | Regional lymph node(s), NOS Lymph node(s), NOS | RN |
| 999 | Unknown; regional node(s) not stated Regional lymph node(s) cannot be assessed Not documented in medical record Death Certificate Only | U |