ICD-10 Code C94.8 – Other specified leukemias (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C94.8 – Other specified leukemias
What it is
C94.8 is used for leukemias that are documented but do not fit a more specific ICD-10 leukemia category. Use it when the provider names an atypical or specified leukemia type and no better code is available.
Clinical signs
Clinical features vary; refer to documentation. Leukemia may present with abnormal blood counts, fatigue, bruising, infections, or organ enlargement, but the exact pattern depends on the specific leukemia type.
When to use this code
Use C94.8 when the record clearly identifies a leukemia diagnosis and the provider specifies that it is “other” or does not map to a more specific code. It may also fit cases where the leukemia subtype is documented, but ICD-10 offers no dedicated code. Check documentation if the diagnosis is uncertain.
Do not use for
Do not use C94.8 for leukemia types that have their own ICD-10 code, such as acute or chronic leukemias with specific classifications. Do not use it when the diagnosis is only suspected or when documentation is too vague.
Coding tip
Code the most specific leukemia term documented, and only default to C94.8 when no more precise ICD-10 option applies.