EOD Regional Nodes
This input is used in derivation
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. **No surgical resection** * Use **CLINICAL** assessment only codes (725, 775) when there is a clinical work up only and there is **NO surgical resection of the primary tumor or site** WITH * Any microscopic examination of regional lymph nodes, which includes FNA, core biopsy, sentinel node biopsy, lymph node excision, or lymph node dissection done during the clinical work up. **Surgical resection without neoadjuvant therapy** * Use **PATHOLOGICAL** assessment only codes (300) when there is a **surgical resection of the primary tumor or site** WITH * Any microscopic examination of regional lymph nodes, which includes FNA, core biopsy, sentinel node biopsy, lymph node excision done or lymph node dissection performed. **Surgical resection after neoadjuvant therapy** * If patient has neoadjuvant therapy, and the clinical assessment is equal to or greater than the pathological assessment, then the clinical assessment codes take priority. Otherwise, code the pathologic assessment. * See ***EOD 2018 General Instructions*** for further instructions on coding cases with neoadjuvant therapy, https://seer.cancer.gov/tools/staging/eod/.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 |