Acute myelomonocytic leukemia, in relapse

This code signifies a recurrence or worsening of acute myelomonocytic leukemia (AMML), a type of acute myeloid leukemia (AML) characterized by the proliferation of both myeloid and monocytic blasts. It indicates that the patient, previously treated for AMML, is now experiencing a return of the disease activity.

Apply this code when documentation explicitly states a diagnosis of acute myelomonocytic leukemia that is in relapse. This typically occurs after a period of remission following initial treatment, and is supported by bone marrow biopsy results, peripheral blood smears, and clinical signs of disease progression.

• Differentiate from "not having achieved remission" (refractory disease) versus "relapse" (recurrence after remission).
• Ensure the documentation specifies "acute myelomonocytic" leukemia, not just general AML or other subtypes.
• Consider sequencing this code as the primary diagnosis when the relapse is the reason for the encounter.