Anaplastic large cell lymphoma, ALK-negative, in remission

This code signifies a history of anaplastic large cell lymphoma (ALCL) that is negative for the anaplastic lymphoma kinase (ALK) gene rearrangement, and the disease is currently in a state of remission. This means the patient previously had ALK-negative ALCL, but there is no current evidence of active disease.

Apply this code when documentation confirms a past diagnosis of ALK-negative anaplastic large cell lymphoma and the patient is no longer undergoing active treatment for the malignancy, with no signs or symptoms of recurrence. This is typically used for surveillance or follow-up encounters after successful treatment.

• Always confirm the ALK status (positive or negative) as this significantly impacts coding.
• Ensure documentation explicitly states "in remission" or similar terminology indicating the absence of active disease.
• Do not use this code if the patient is still receiving active treatment for the lymphoma, even if responding well.