Not VA, but I did discover that my (big huge national) insurance does not cover TRIMIX, so they refused my Rx. The pharmacist worked with them, and discovered there is some coverage if the ED is directly linked to surgery or an accident, and he forwarded information about
my surgery. You would think that they knew about
it (they paid a lot of bills). It seemed that a healthcare professional had to declare the two events to be related on a specific form.
At the same time, it would not be covered for RT guys who developed issues over time, because RT is not surgery. Insurance is a nightmare.