EOD Regional Nodes
**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.
(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)