I have been doing IVIG for about 12 years and am on Medicare and a supplemental policy. I do it through an out-patient infusion center at my local hospital. I recommend you contact the infusion center you are thinking of using and ask what their experience has been with getting Medicare to approve IVIG. They have the most experience with filing the claims and know the steps that are most likely to get you approved. If they can't help you, you might ask to speak to the billing department and see if you can get your answers there. My past experience has been that it has a lot to do with the diagnosis code that is filed with the claim.

Good luck and I hope you get approved.