The HCPCS modifier EJ is used for billing the subsequent doses in a defined course of therapy. It is not used for the first dose or injection of a series. Common applications Codeage Liposomal Glutathione+ Supplement 1000 mg Reduced L Glutathione Pills, Ascorbic Acid, CoQ10, Skin and Antioxidant Support, 120 Capsules Macy's Codeage Liposomal Glutathione, For Men and Women, 500 mg of Setria L Glutathione, 350 mg Phospholipid, non GMO, 60 Capsules Codeage Liposomal Glutathione, For Men and Women, 500 mg of Setria L Glutathione, 350 mg Phospholipid, non GMO, 60 Capsules