Encounter for antineoplastic immunotherapy

This code signifies a patient's visit specifically for the administration of immunotherapy agents designed to treat cancer. These therapies work by stimulating or restoring the body's immune system to fight malignant cells. It covers the direct encounter for receiving these specialized treatments.

This code is appropriate for encounters where a patient receives an antineoplastic immunotherapy infusion, injection, or other form of administration. It should be used for ongoing treatment sessions, not for initial evaluation or follow-up without therapy. This includes biological response modifiers, checkpoint inhibitors, and other immune-modulating cancer treatments.

• Always sequence this code as a primary diagnosis when the sole purpose of the encounter is immunotherapy administration.
• Do not use this code for chemotherapy or radiation therapy; separate codes exist for those modalities.
• Ensure the patient's underlying malignancy is also coded, typically as a secondary diagnosis.