AHA Coding Clinic® for ICD-9 - 1994 Fourth Quarter

Injection or Infusion of biological response modifier as an antineoplastic agent

There are no specific codes which identify immunotherapy for cancer. It is currently being assigned to 99.25, Injection or infusion of cancer chemotherapeutic substance. Effective October 1, 1994, a new code (99.28, Injection or infusion of biological response modifier [BRM] as an antineoplastic agent), has been added to specifically identify immunotherapy. Immunotherapy is also known as biologic therapy and biologic anticancer therapy. Chemotherapy is a treatment which interferes with cell growth and division, while immunotherapy causes the body's own immune system to reject the cancer. Immunotherapy boosts the body's disease fighting mechanisms so only cancerous or other...

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