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 the field EOD Mets. **Note 2:** Regional nodes includes bilateral and contralateral involvement of named nodes. **Note 3:** 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
300	Aortic (above diaphragm), NOS - Peri/para-aortic, NOS + Ascending aorta (phrenic) + Subaortic (aortico-pulmonary window) Carinal (tracheobronchial) (tracheal bifurcation) Hilar (bronchopulmonary) (proximal lobar) (pulmonary root) Intrapulmonary, NOS - Interlobar - Lobar - Segmental - Subsegmental - Mediastinal, NOS - Anterior - Posterior (tracheoesophageal) Peri/parabronchial Pericardial Peri/paraesophageal Peri/paratracheal, NOS - Azygos (lower peritracheal) Pre- and retrotracheal, NOS: - Precarinal Pulmonary ligament Subcarinal	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)