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Oncology/Hematology Coding:

Use This Guide to Locate MSCH Code

Published on Fri Nov 06, 2026

Question: What is the most accurate ICD-10-CM code for mucosal Schwann cell hamartoma (MSCH), listed in the pathology report under a sigmoid colon biopsy? AAPC Forum Participant Answer: Because an MSCH is a rare and recently recognized condition, it does not currently have a dedicated ICD-10-CM code. However, if you examine the condition’s etiology, it is possible to come up [...]
Codify by AAPC
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