Chronic lymphocytic leuk of B-cell type not achieve remis

This code identifies a malignant neoplasm characterized by the uncontrolled proliferation of mature B-lymphocytes, which has been diagnosed as chronic lymphocytic leukemia (CLL) and is currently active, meaning it has not entered a state of remission. It specifically denotes the B-cell lineage of this chronic leukemia.

Apply this code when documentation confirms a diagnosis of B-cell chronic lymphocytic leukemia that is ongoing and has not achieved remission. This is appropriate for initial diagnoses, active treatment phases, or when the disease is stable but not in remission. Supporting documentation should clearly state the diagnosis of CLL, B-cell type, and indicate the absence of remission.

• Do not use this code if the patient is in remission; instead, select the appropriate code for CLL in remission.
• Ensure the documentation specifies "B-cell type" for accurate coding; otherwise, a more general CLL code may be necessary.
• Sequence this code as the primary diagnosis when it is the reason for the encounter or treatment.