SEER Inquiry System - Report
Produced: 10/18/2025 5:44 AM
Question 20021012
Inquiry Details
References:
SEER EOD-88, 3rd Ed, 180
Question:
EOD-Extension--Lymphoma: How do you code stage and EOD for an extranodal lymphoma with bilateral involvement of a paired site? See discussion.
Discussion:
Answer:
For cases diagnosed 1998-2003:
Bilateral involvement of an extralymphatic paired organ is coded as involvement of a single extralymphatic organ or site for lymphomas. The EOD extension code would be at least 11 (Stage IE). Staging lymphomas of any site depends on whether one or more lymph node regions and/or extralymphatic organs are involved, and whether sites on one or both sides of the diaphragm are involved.