I did not have to stop my reflux meds, ( thank goodness, as I was on 4). Quite frankly, a barium swallow will also tell them if you have Reflux, though it’s not always 100% accurate (but if your GERD is bad enough and the tech and radiologist is good it should show) and it not nearly as bad a test. If you appeal, definitely add in the poor quality of life, how much medication you are taking, and reiterate that it’s not for weight loss. If your dr is willing to do a peer to peer with the insurance company, that also helps. I included that my GI suggested surgery and told me there were no more medical management options available left to me, therefore, undergoing more tests to prove what we already knew undermined his professional opinion as well as that of the surgeon who agreed with him. I also insisted that a GI Dr review my case not any dr (insurance companies will use any dr available and I’ve had podiatrists and ob-gyn’s deny me because they are going by a list of requirements as opposed to knowing a disease condition)
These are things that helped me get approved. Best to you and hope all goes well..