SEER Inquiry System - Report
Produced: 10/15/2025 3:53 AM
Question 20031162
Inquiry Details
References:
#1: ICD-O-3, 97
#2: WHO Class Hem & Lymph Tumors, 119-126. 2001
Question:
Discussion:
Answer:
For cases diagnosed prior to 1/1/2010:Abstract as one primary, 9591/3 [B-cell lymphoma, NOS]. The bone marrow diagnosis indicates that the main/definite diagnosis is B-cell lymphoma, with a lesser indication of hairy cell leukemia. Both of these are mature B-cell neoplasms according to the WHO histological classification.
For cases diagnosed 2010 forward, refer to the Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and the Hematopoietic Database (Hematopoietic DB) provided by SEER on its website to research your question. If those resources do not adequately address your issue, submit a new question to SINQ.