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SEER Inquiry System - Report
Produced: 05/04/2026 8:07 AM
Question 20130139
Inquiry Details
References:
#1: Heme & Lymph Manual & DB
#2: 2013 SEER Manual
Question:
Discussion:
Diffuse large B-cell lymphoma [9680/3] diagnosed in 5/2010 and treated with chemotherapy. In 11/2012 a bone marrow biopsy revealed small lymphocytic lymphoma (CLL/SLL) [9823/3].
The 2010 slides were reviewed and showed, "a large cell lymphoid proliferation, many of the cells which appear to be prolymphocytes. There are background smaller lymphocytes that are consistent with CLL/SLL. In retrospect, the lymph node most likely represented a prolymphocytic conversion in SLL."
The medical oncologist is calling this a recurrent lymphoma. Should the original 5/2010 diagnosis be changed to 9823/3 [CLL/SLL]? Is this documented in the Heme Manual?
Answer:
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.
Change the histology of the original 2010 diagnosis to 9823/3 [chronic lymphocytic leukemia/small lymphocytic lymphoma] based on the review of the 2010 slides. The 2010 diagnosis was revised based on the review of slides and the histology should be changed accordingly. The closest example of this is located in the SEER Manual, Changing Information on the Abstract, instruction 3, example 4.
Histology code 9670/3 [SLL] is obsolete for cases diagnosed 2010 and later. All diagnoses of CLL/SLL, CLL, and SLL are now coded to histology code 9823/3 [CLL/SLL].
SEER*Educate provides training on how to use the Heme Manual and DB. If you are unsure how to arrive at the answer in this SINQ question, refer to SEER*Educate to practice coding hematopoietic and lymphoid neoplasms. Review the step-by-step instructions provided for each case scenario to learn how to use the application and manual to arrive at the answer provided. https://educate.fhcrc.org/LandingPage.aspx.
History:
Based on the review of the 2010 slides, the 2010 diagnosis was revised. Change the histology code on the 2010 diagnosis. (SEER manual, #3, example 4 (closest example) page 7, http://www.seer.cancer.gov/manuals/2013/SPCSM_2013_maindoc.pdf)
Since the original diagnosis is from 2010 and this is being called a lymphoma, use code 9670/3 for SLL. Code 9823/3 did not become effective for SLL until 2012.
