C93.1
Header — not billableChronic myelomonocytic leukemia
The ICD-10 code for chronic myelomonocytic leukemia is C93.1.
C93.1 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Clinical notes
Code also
Two codes may be needed to fully describe a condition, but unlike Code First/Use Additional Code, the sequencing order is not mandated by convention.
- , if applicable, eosinophilia (D72.18)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Chronic monocytic leukemia
- CMML-1
- CMML-2
- CMML with eosinophilia
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- C93.0Acute monoblastic/monocytic leukemianon-billable header
- C93.3Juvenile myelomonocytic leukemianon-billable header
- C93.9Monocytic leukemia, unspecifiednon-billable header
- C93.ZOther monocytic leukemianon-billable header
- C93.1Chronic myelomonocytic leukemianon-billable header