IVIG therapy is widely used to treat autoimmune, neurological, and immunodeficiency disorders. Because intravenous immunoglobulin is a high-cost medication, IVIG infusion billing is closely reviewed by insurance payers. Even small coding or documentation errors can lead to denials, delays, or underpayment. For practices offering IVIG therapy, understanding billing requirements is e... https://infusionbillingservices.com/