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SEER Inquiry System - Report
Produced: 06/24/2026 2:14 PM
Question 20110104
Inquiry Details
References:
Heme & Lymph Manual & DB
Question:
Discussion:
Answer:
For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph..
Code the primary site to the involved lymph nodes [C770-C779]. Per Rule PH 8, it indicates you are to code the primary site to the site of origin when lymph node(s) or lymph node region(s), tissue(s) or organs are involved. Note 2 further states that the bone marrow may or may not be involved. If the bone marrow is involved, code this information in the CS Extension field.
Per the Abstractor Notes section in the Heme DB, this is a systemic disease with widespread lymph node involvement as well as involvement of the peripheral blood. In addition, systemic involvement of extranodal sites (including lung) are often involved.
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:
This SINQ question has been updated to the Hematopoietic & Lymphoid Neoplasm Manual & Database published January 2014.
The original answer below was written based on the rules in 2010
For cases diagnosed 2010-2011, access the Hematopoietic Database at http://seer.cancer.gov/tools/heme/. Click on Hematopoietic Project. Click on Hematopoietic and Lymphoid Database. For 2010-2011 diagnoses, click on the "use the 2010 database" label in the upper right corner of the screen. The 2010 Hematopoietic Coding Manual (PDF) button will appear to indicate the correct version of the program is available now for query.
Code the primary site to the involved lymph nodes [C770-C779]. The steps used to arrive at this decision are as follows:
Enter in the Heme DB. Click on the SEARCH button. "Adult T-cell leukemia/lymphoma (HTLV-1/positive)" [9827/3] will be highlighted.
Scroll to the ABSTRACTOR NOTE section for additional clarifying information regarding this diagnosis. It indicates that this is a systemic disease with widespread lymph node involvement as well as involvement of the peripheral blood. In addition, extranodal sites (including lung) are often involved.
Code the primary site to C770-C779 per the information in the Primary Site section.
