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ICD-10-CM 2027

ICD-10 code for Megakaryocytic myelosis

C94.2

Acute megakaryoblastic leukemia

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Myelosis › megakaryocytic”. Page updated September 29, 2026.

About coding Megakaryocytic myelosis

The ICD-10-CM code for Megakaryocytic myelosis is C94.2 (Acute megakaryoblastic leukemia).

Within C94 (other leukemias of specified cell type), C94.2 is specifically for acute megakaryoblastic leukemia. Related codes cover acute erythroid leukemia (C94.0), mast cell leukemia (C94.3), acute panmyelosis with myelofibrosis (C94.4), myelodysplastic disease, not elsewhere classified (C94.6) and other specified leukemias (C94.8).

To report this condition, pick the subcode that matches the documentation: C94.20 (not having achieved remission), C94.21 (in remission) and C94.22 (in relapse).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about Megakaryocytic myelosis ICD-10 codes

What is the ICD-10 code for Megakaryocytic myelosis?

C94.2 — Acute megakaryoblastic leukemia (a header code; report a more specific subcode).

Is C94.2 billable?

No. C94.2 is a header code. Report one of its more specific subcodes instead.