Chris,
Welcome. And, what a miserable story!
Some on this site have had luck getting Aetna to cover a single level ADR, but I don't recall success on a multi-level success. Where are you in the appeals process with Aetna?
Here is a link to a thread on this site which contains an article about a judge ordering Cigna to begin covering two level ADRs. It may contain information beneficial for you in the appeal.
Good luck, Jeff