Joanne, in most states you'd be right. But things seem to be changing here in Washington.
The wording in my policy is vague. I imagine intentionally so. It only says that they cover "medically necessary procedures for gender reassignment." But after talking to them, I now know they cover SRS, orchis, HRT, therapy, and voice therapy. So if I can demonstrate the medical necessity of hair restoration in my case (which WPATH supports), I think I have maybe a 50/50 chance.
But I do understand insurance companies' job is to collect our money and pay out as little add as possible.
Worst case I go through the appeals and they still say no, I'd have to just pay for it myself.
Wish me luck!