Other monocytic leukemia, in relapse

This code signifies a diagnosis of a specific type of monocytic leukemia that does not fit into other defined categories, and importantly, is currently in a state of relapse. Relapse indicates the reappearance of the disease after a period of remission. This diagnosis requires confirmation through bone marrow biopsy and peripheral blood smear analysis.

Apply this code when documentation clearly states "other monocytic leukemia" and explicitly indicates the disease is "in relapse." This is typically used for patients undergoing treatment for recurrent disease or those presenting with new symptoms after achieving remission. Supporting documentation includes pathology reports, physician notes detailing relapse, and treatment plans for recurrent leukemia.

• Ensure the documentation specifies "other" monocytic leukemia; do not use for acute or chronic monocytic leukemias.
• The "in relapse" status must be clearly documented; do not use for initial diagnosis or remission.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter, unless another condition is driving the encounter and the leukemia is a comorbidity.