Many times our insurance companies refuse to pay for things that our doctors order and we really need. When I worked in home care, part of my job was to get insurance authorization for home care nursing for children who require in home nursing. So, I have an advantage in fighting for my own care. I'm hoping that I can share my experience with you. The above link is someone else's information as I figured that the more information that you have the better.
For those of us with RSD, the main thing that we try to get approved is Ketamine. Here is my suggestion on how to get pre-authorization for Ketamine Therapy. It is easier to get preauthorization than to have the treatment and have the insurance company deny your claim as you may be stuck paying for the treatment while you fight with the insurance company!!!
Please feel free to quote the article information directly. It will not bother me in the least. If this information can help even one person get their Ketamine approved, then my efforts are worth it!!