D.M.
Getting your benifits department involved is key! They have a louder voice than you because they can choose whether or not to buy this product again when it terms.
Insurance companies are not concerned with future illness because the odds of you still being covered under UHC in 10 years are rare. People change jobs, employers switch benefits companies...you dont keep one company over your lifetime. So they would be saving someone else money. You need to prove that it will save THEM money NOW by limiting the need for therapy they must pay for, or any other procedure. I dont know what a Doc Band is...but get the company's research on the outcome measures for this product/procedure and any other independent studies done to show why this is necessary.
Letters of medical necessity are necessary first step, but usually not very effective. You are appealing to a nurse or doctor, hired by the insurance company to keep claims down. So a "mom" letter wont help. Your documentation needs to be medically sound and research-based. Know your audience when you're writing. This isn't a bleeding heart medical professional. This is someone who is being paid money to dispute this. So write with that in mind. (That is- once you get into medical review. The initial request needs to be written on a 4th grade level for the first line of reviewers!)
I appeal all the time for my practice- we just dont deal with this specifically, so I dont know the catch phrases they are looking for. If they are excluding "straightening the body", which is weird..what ELSE will this do; ie: what will the side effects of having a straight body be? For instance..now he cant run 50 feet without back pain. After the procedure, he will be able to run without back pain, etc. Dont focus on the "straightening" part. Focus on what the medical outcome will be. You can use reduced risk of future health problems, but that needs to be the last thing mentioned...you need to tel them what the immediate benifit will be. If this is something that can be delayed for 10 years, then they will want yo to delay it so it will be another insurance company's problem.
DOnt be afraid to make it about money, too. This procedure will cost $5. 3 years of therapy will cost $10.
And, if all else fails and you think they are supposed to pay...file a complaint with the Texas department of insurance. It is very easy to do on-line.
Now...if they aren't supposed to pay because your employer specifically excluded these things to save money...then there is nothing you can do. It's like buying fire insurance after your house burns down. If you didn't buy the policy, they dont have to cover it.