ICD-10 Code C93.0 – Acute monoblastic/monocytic leukemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C93.0 – Acute monoblastic/monocytic leukemia
What it is
C93.0 identifies acute myeloid leukemia with monoblastic or monocytic predominance. It is used when the leukemia is specifically described as acute monoblastic, acute monocytic, or mixed monoblastic/monocytic.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include acute leukemia symptoms such as fatigue, infection, bruising, bleeding, anemia, and evidence of abnormal monoblasts or monocytes on hematology evaluation.
When to use this code
Use C93.0 when the provider documents acute monoblastic leukemia, acute monocytic leukemia, or acute monoblastic/monocytic leukemia. Apply it when the diagnosis is confirmed and the record supports this specific AML subtype. Check documentation if the subtype is unclear or only “acute leukemia” is stated.
Do not use for
Do not use this code for chronic monocytic leukemia, other AML subtypes, or unspecified leukemia. If the record does not clearly identify monoblastic or monocytic disease, choose a more accurate code or check documentation.
Coding tip
Code the documented leukemia subtype exactly; do not infer C93.0 from general AML language.