EOD Regional Nodes

This input is used for staging


**Note 1:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in EOD Mets. **Note 2:** This schema has lymph node codes that are defined as **CLINICAL** assessment only or **PATHOLOGICAL** assessment only. + **CLINICAL** assessment only codes (100, 200, 300) are used when there is a clinical work up only and there is no surgical resection of the primary tumor or site. This includes FNA, core biopsy, sentinel node biopsy, or lymph node excision - *Exception:* If patient has neoadjuvant therapy, and the clinical assessment is greater than the pathological assessment, then the clinical assessment code would take priority + **PATHOLOGICAL** assessment only codes (400, 500) are used when - Primary tumor or site surgically resected with - 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 + Remaining codes (no designation of **CLINICAL** or **PATHOLOGICAL** only assessment) can be used based on clinical and/or pathological information **Note 3:** Regional lymph nodes include - Iliac, NOS + External + Internal (hypogastric, obturator) - Inguinal, NOS + Node of Cloquet or Rosenmuller (highest deep inguinal) + Superficial [femoral] - Pelvic, NOS **Note 4:** Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.




Code Description SS2018 N
000 No regional lymph node involvement NONE
100 CLINICAL assessment only Palpable mobile unilateral inguinal lymph node RN
200 CLINICAL assessment only Palpable mobile greater than or equal to 2 unilateral inguinal nodes Bilateral inguinal lymph nodes RN
300 CLINICAL assessment only Palpable fixed inguinal nodal mass Pelvic lymphadenopathy (unilateral or bilateral) RN
400 PATHOLOGICAL assessment only Positive inguinal lymph nodes WITHOUT extranodal extension RN
500 PATHOLOGICAL assessment only Extranodal extension of any lymph nodes OR pelvic lymph node metastases 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 medical record Death Certificate Only U
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