Intravenous Immune Globulin (IVIG) (J1566, J1599) Specific brand names: Flebogamma® (J1572), Gammagard® liquid (J1569), Gammaked® (J1569), Gammaplex® (J1557), Gammunex® (J1561), Gammaplex (J1557), ......requires that your provider submit one of the following: a positive...that you have tried at least one of the following medications:...