Other specified leukemias not having achieved remission

This code signifies a diagnosis of a leukemia type that is not otherwise specified by a more precise code, and the patient has not yet achieved a state of remission. This includes rare or atypical forms of leukemia that don't fit into the more common classifications (e.g., acute myeloid, acute lymphoblastic, chronic myeloid, chronic lymphocytic). The "not having achieved remission" indicates active disease.

Apply this code when documentation clearly states a diagnosis of "other specified leukemia" and explicitly indicates that the patient is not in remission. This is appropriate for initial diagnoses or during active treatment phases where remission has not been attained. Supporting documentation would include pathology reports, physician notes, and treatment plans confirming the specific leukemia type and its active status.

• Always seek more specific leukemia codes (e.g., C92.00, C91.00) if the documentation allows.
• Do not use this code if the patient is in remission (use codes like C94.81 or Z85.6).
• Sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when it contributes to the patient's overall condition.