Hi Erin!
The best place to refer a patient for this information is to the Medicare Part B MAC for your jurisdiction, the payors website generally will offer information relating to coverage policies - i.e. what is and is not covered and why.
For a more "patient friendly" version that has easier to understand language, please follow the link below that explains what portions of TMD treatment are covered by Medicare and what is not:
http://www.caring.com/me...icare-coverage-tmj-care
Hope this helps!