SEER Inquiry System - Question 20100091 Details

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Question 20100091

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Inquiry Details

References:

Heme & Lymph Manual & DB

Question:

Reportability/Histology--Heme & Lymphoid Neoplasms: How many primaries are accessioned and how is histology coded when a patient has a history of chronic myelogenous leukemia diagnosed in 1997 and a "blast crisis with myeloid markers" of this disease in 2010? See Discussion.

Discussion:

The patient was initially diagnosed with CML in 1997. In February 2010 the disease went into a "blast crisis with myeloid markers." The patient received induction chemotherapy and the disease went back into a chronic phase. To capture the 2010 diagnosis of a blast crisis, is the histology code 9875/3 [chronic myelogenous leukemia, BCR/ABL1 positive] or 9861/3 [acute myeloid leukemia, NOS] used?

Answer:

For cases diagnosed 2010 and forward, access the Hematopoietic Database at http://seer.cancer.gov/seertools/hemelymph.

Per Rule M2, there is a single primary. Code histology to 9863/3 [CML, BCR-ABL1 status unknown, Blastic phase (BP)]. The blast phase is not recorded as a new primary because this disease does NOT change histologies.

Code 9875 [Chronic myelogenous leukemia, BCR-ABL1 positive] does not apply to the 2010 diagnosis because BCR/ABL status unknown. Code 9861/3 [Acute myeloid leukemia, NOS] also does not apply because the diagnosis was not acute.

It is not clear which chronic myelogenous leukemia (CML) this patient has. Each CML is unique in that it has a blast phase without the histology itself changing. See the Abstractor Notes section in the Heme DB under any of the chronic myelogenous leukemias for a further explanation of this disease process.

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:

he blast phase is not recorded as a new primary because this disease does NOT change histologies.

It is not clear which chronic myelogenous leukemia (CML) this patient has. Each CML is unique in that it has a blast phase without the histology itself changing. See the Abstractor Notes in the 2010 Hematopoietic Database under any of the chronic myelogenous leukemias for a further explanation of this disease process.

The answers for SINQ questions with 2010 ID numbers were written using the 2010 Heme & Lymph Manual & DB. The instructions for using the 2010 Hematopoietic Database were written for the version of the software in use as of 5/24/2011. The user interface of the web-based 2010 Hematopoietic Database available from the SEER website varies slightly from the 5/24/2011 version in that the web-based version provides all the disease information in one scrollable window.

For cases diagnosed 2010-2011, access the 2010 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.

Cancer Site Category:

Heme & Lymphoid Neoplasms

Data Item Category:

Histology

Other Category:

Reportability

Year:

2010