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Oncology & Hematology Coding Alert

Oncology/Hematology Coding:

Mend Your Misunderstanding of Multiple Myeloma Coding

Published on Fri Sep 25, 2026

Hint: ICD-10-CM coding for smoldering multiple myeloma isn’t what you’d expect. Although multiple myeloma (MM), smoldering multiple myeloma (SMM), and monoclonal gammopathy of undetermined significance (MGUS) are related plasma-cell disorders, they are not interchangeable. So, it’s important that as a coder, you understand their clinical differences, because unclear or incomplete documentation can result in coding confusion and inaccurate code assignment. [...]
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