My father has been diagnosed with Huntington's disease which is a pretty serious disorder. His diagnosis is clinical. Insurance refuses to pay for the genetic test to help confirm the diagnosis and is additionally rejecting the drug that his neurologist prescribed to help with his chorea because it is expensive. His insurance company is disgraceful, in my opinion. He needs that genetic conformation before the insurance company will even consider that drug, which they might still deny if it gets to that stage.

So, I would guess that insurance would not cover the costs of those tests, if you could even find a neurologist to order it. Especially if there are no different drugs that on the market that have an indication for this, then the treatment path would be the same - gabapentin, Lycra, Cymbalta etc.