Hi Dr. Ken Luco!
Great questions. Currently, I don't believe there are many (if any) medical insurers that will consider treatment of sleep bruxism medically necessary and offer coverage for the treatment.
There are a few medical insurers that will offer coverage for botox for treatment of "painful bruxism". For example, here is a link to Aetna’s medical policy for botox:
http://www.aetna.com/cpb/medical/data/100_199/0113.htmlThe above policy states:
“OnabotulinumtoxinA (Botox Brand of Botulinum Toxin Type A): Aetna considers onabotulinumtoxinA (Botox) medically necessary for any of the following conditions:
……
V. Painful bruxism”
As far as an ICD-10 diagnosis code for sleep bruxism, there is a specific one for that!
G47.63 - Sleep related bruxism
And as you mentioned below, if is daytime bruxism and not sleep related, the appropriate code seems to be:
F45.8 - Other somatoform disorders
Hope this helps, have a great day!