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:** Para-aortic nodes are now regional instead of distant. **Note 3:** When both the Federation Internationale de Gynecologie et d'Obstetrique (FIGO) stage and lymph node detail are available, record the code with lymph node detail in preference to a statement of FIGO stage. **Note 4:** Isolated tumor cells (ITCs) are defined as single tumor cells or small clusters not greater than 0.2 mm, usually detected by immunohistochemical (IHC) or molecular methods. ITCs do not usually show evidence of malignant activity (e.g., proliferation or stromal reaction). Lymph nodes with ITCs only are not counted as positive nodes * For positive ITCs with NO regional lymph node involvement, code 050 **Note 5:** Regional lymph nodes include: * Pelvic, NOS (codes 100-300) - Iliac, NOS + Common + External + Internal (hypogastric) (obturator) - Paracervical - Parametrial - Pelvic, NOS - Sacral, NOS + Lateral (laterosacral) + Middle (promontorial) (Gerota's node) + Presacral + Uterosacral * Para-aortic, NOS (WITH or WITHOUT pelvic lymph nodes) (codes 400-600) - Aortic - Lateral aortic/lateral lumbar - Periaortic **Note 6:** Code 800 if regional lymph nodes are involved, but there is no indication which ones are involved.

Default

999

NAACCR Item

NAACCR #774

Code	Description	SS2018 N
000	No regional lymph node involvement	NONE
050	Isolated tumor cells * Lymph node metastasis less than or equal to 0.2 mm	NONE
100	Pelvic lymph nodes * Lymph node metastasis greater than 0.2 mm but not greater than 2.0 mm in diameter	RN
200	Pelvic lymph nodes * Lymph node metastasis greater than 2.0 mm in diameter	RN
300	Pelvic lymph nodes * Size of lymph node metastasis unknown	RN
400	Para-aortic lymph nodes * Lymph node metastasis greater than 0.2 mm but not greater than 2.0 mm in diameter * WITH or WITHOUT pelvic lymph nodes	RN
500	Para-aortic lymph nodes * Lymph node metastasis greater than 2.0 mm in diameter * WITH or WITHOUT pelvic lymph nodes	RN
600	Para-aortic lymph nodes * Size of lymph node metastasis unknown * WITH or WITHOUT pelvic lymph nodes	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

(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998 (2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001. (3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05**. American Joint Committee on Cancer (Chicago, IL) (4) **Cervix Uteri**, from the AJCC Cancer Staging System Version 9 (2020). Used with permission of the American College of Surgeons, Chicago, Illinois.