ICD-10 Code C92.9 – Myeloid leukemia, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C92.9 – Myeloid leukemia, unspecified
What it is
C92.9 identifies a leukemia of myeloid origin when the specific subtype is not documented. Use it for malignant blood cancers arising from myeloid cells, but not further classified in the record.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include anemia, fatigue, infections, bruising, bleeding, or abnormal white blood cell counts, but the chart must support the leukemia diagnosis.
When to use this code
Use C92.9 when the provider documents myeloid leukemia without naming a more specific type, such as acute or chronic subtypes. It also fits when the record confirms myeloid leukemia but the subtype is not available, unclear, or not yet established. Code the documented diagnosis, not your assumption.
Do not use for
Do not use this code for lymphoid leukemias, other specified myeloid leukemias, or situations where the subtype is clearly documented elsewhere. Check documentation if the record names a more specific leukemia.
Coding tip
Query the provider when “myeloid leukemia” is stated without a subtype, because a more specific code may be supported.