ICD-10 Code C93.10 – Chronic myelomonocytic leukemia not having achieved remission (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C93.10 – Chronic myelomonocytic leukemia not having achieved remission
What it is
C93.10 identifies chronic myelomonocytic leukemia, a myelodysplastic/myeloproliferative neoplasm, when remission has not been achieved. Use it when the record clearly states active disease or no remission.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include persistent monocytosis, cytopenias, splenomegaly, fatigue, or recurrent infections, but you should code only what the provider documents.
When to use this code
Use C93.10 when the diagnosis is CMML and the clinician documents that it is not in remission, persistent, or active. It also fits follow-up visits where the disease status remains non-remission. If remission status is not stated, check documentation before assigning this code.
Do not use for
Do not use this code for CMML in remission or for suspected leukemia without confirmation. If the record names another myeloid neoplasm or leaves the status unclear, check documentation.
Coding tip
Confirm both the leukemia type and the remission status in the assessment, problem list, or oncology note before coding.