What is covered, what is not? More details after the jump...

I got my IUD replaced today and I know that under Obamacare, the visit, the followup visit, and the Mirena are covered. However, the receptionist indicated that the ultrasound to measure my uterus and check the placement would count toward my deductible which seemed to indicate to me that it would not be fully covered. This wouldn't affect my decision, but I am trying to figure it out. Does anybody have experience with it? My plan is pretty standard from a major corporation.

PS - regardless I loved my last IUD and having to pay full price wouldn't change my mind about it.