Chronic myelomonocytic leukemia not achieve remission

This code represents a myelodysplastic/myeloproliferative neoplasm characterized by persistent monocytosis, myeloid dysplasia, and often splenomegaly, without progression to acute leukemia. It signifies that the disease is ongoing and has not entered a state of remission.

Apply this code for patients diagnosed with chronic myelomonocytic leukemia (CMML) who are actively undergoing treatment or are in a chronic phase of the disease without evidence of remission. Documentation should clearly state CMML and indicate the absence of remission, often noted as "active disease" or "not in remission."

• Do not use this code if the patient has achieved remission; instead, refer to codes for CMML in remission.
• Ensure documentation specifies "chronic" CMML, as there are other myelomonocytic leukemia types.
• Sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when managing complications of active CMML.