ICD-10 Code C93.11 – Chronic myelomonocytic leukemia, in remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C93.11 – Chronic myelomonocytic leukemia, in remission
What it is
C93.11 identifies chronic myelomonocytic leukemia that is documented as being in remission. Use it when the patient has a history of CMML and the record states the disease is no longer active.
Clinical signs
Clinical features vary; refer to documentation. CMML is a myeloid neoplasm with monocytosis and marrow involvement, but this code applies when the condition is noted as in remission rather than actively presenting.
When to use this code
Use this code when the physician documents chronic myelomonocytic leukemia in remission, including follow-up visits after treatment or surveillance encounters. It supports coding of the prior malignancy status when no active disease is described. Check documentation if the note only says “history of” or “status post” without remission.
Do not use for
Do not use C93.11 for active CMML, relapsed disease, or unspecified leukemia status. If the record does not clearly state remission, use the more accurate documented condition.
Coding tip
Always look for the exact phrase “in remission” before assigning C93.11.