EOD Regional Nodes
This input is used for staging
Notes
**Note 1:** **Regional nodes and nodes, NOS** * Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **Note 2:** **CLINICAL AND PATHOLOGICAL codes** * This schema has lymph node codes that are defined as **CLINICAL** assessment only or **PATHOLOGICAL** assessment only. * **PATHOLOGICAL** assessment only code (300) is used when * Any microscopic examination of regional lymph nodes, includes * FNA, core biopsy, sentinel node biopsy or lymph node excision done during the clinical work up **AND/OR** * Lymph node dissection performed * Pathological code 300 takes priority over codes 725, 775, 800 * **CLINICAL** assessment only codes (725, 775) are used when the **only** information on nodal involvement is based on **physical exam or imaging** * These codes are specifically for when there is no **microscopic confirmation** of regional lymph nodes (*Regional Nodes Positive = 98, 99*) * **Note:** Use code 300 if *Regional Nodes Positive is 01-90, 95* * Remaining codes (no designation of **CLINICAL** or **PATHOLOGICAL** only assessment) can be used based on clinical and/or pathological information * **Code 000** is used when there is no evidence of regional lymph nodes clinically **OR** lymph nodes are negative pathologically (*Regional Nodes Positive = 00, 98*) * **Code 800** is used when there are positive nodes (clinical or pathological), but the specific lymph nodes or number of positive nodes is unknown (*Regional Nodes Positive = 97*) * **Code 999** is used when the lymph node status is unknown and *Regional Nodes Positive = 99*Default
999NAACCR Item
NAACCR #774| Code | Description | SS2018 N |
|---|---|---|
| 000 | No regional lymph node involvement | NONE |
| 300 | **PATHOLOGICAL ASSESSMENT ONLY** Celiac artery Cystic duct (Calot's node) Hepatic artery Node of foramen of Winslow (omental) (epiploic) Pancreaticoduodenal Pericholedochal (common bile duct) Periduodenal Peripancreatic (near head of pancreas only) Porta hepatis (portal) (periportal) (hilar) (in hilus of liver) Portal vein Portacaval Retroperitoneal, NOS Superior mesenteric | RN |
| 725 | **CLINICAL ASSESSMENT ONLY** One-three positive nodes clinically OR stated as Clinical N1 | RN |
| 775 | **CLINICAL ASSESSMENT ONLY** Four or more positive nodes clinically OR stated as Clinical N2 | RN |
| 800 | Positive nodes, number unknown Unknown if clinical or pathological assessment 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 |