It took almost 1 1/2 years, several appeals and finally getting HR involved when my insurance denied coverage although I met the specific criteria for coverage by our plan.
I'm glad the original claim and appeal were denied though because I ended up changing my mind on the procedure I wanted and changed surgeons, too, along the way. So in the end, it worked out for the best. Just wish insurance companies weren't so hard to work with. They tried to stretch the contract to say whatever they wanted it to say. Luckily I work with contracts all the time, so I know that it is exactly what it says it is and if it's not in writing then it's not part of the contract (policy). So I wasn't taking NO for an answer when I knew I met the criteria exactly as specified in the policy.