The following information appeared on, CMS.gov
Chemotherapy administration codes 96401-96549 apply to parenteral administration of non-radionuclide anti-neoplastic drugs; and also to anti-neoplastic agents provided for treatment of noncancer diagnoses (e.g., cyclophosphamide for auto-immune conditions) or to substances such as certain monoclonal antibody agents, and other bio-logic response modifiers.
The billing and coding requirements for the oncology medications and biologics has been updated in the new Medicare Coverage Database which is effective 06-06-2022