Good luck, and I'm glad your injuries weren't worse!

I had some initial trouble with my insurance company after a wreck a couple years ago (though I turned down the helicopter, not knowing how bad my injuries were) and for me, the phrase "life-threatening injuries" was enough to overturn every one of their denials. Granted, my problem was out-of-network doctors working the trauma center, but there's sometimes a clause in the fine print somewhere that forces them to cover transport coded with a serious threat to life. (Along those lines, if you can check your claims online or have the paperwork in hand already, you can double-check the code numbers for the transport - sometimes the billing people at the hospital will miscode something that will cause a denial when it shouldn't be).