SEER Inquiry System - Question 20000259 Details

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Produced: 03/04/2026 1:29 PM

Question 20000259

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Inquiry Details

References:

#1: ICD-O-3, 87

#2: ICD-O-2, 38

Question:

Histology (Pre-2007): What code is used to represent the histology for a "malignant invasive gastrointestinal stromal tumor (GIST)"?

Discussion:

Answer:

For tumors diagnosed 2001-2006: Malignant GIST is coded 8936/3.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

History:

For cases diagnosed prior to 1/1/01: Malignant GIST is coded as stromal sarcoma 8930/3.

Cancer Site Category:

Sarcoma

Data Item Category:

Histology

Other Category:

N/A

Year:

2000