Did HP say what section they were referencing because I didn't see anything to suggest that, but again, maybe we're all missing something.
As WhiteRose said - the only thing as I understand it that it said was that if the employee had a condition that required a contraceptive but they were not using it to prevent pregnancy, they would have to submit an explanation and pay out of pocket until it was approved. I'm not sure how an employer would figure out if they were lying or how they could lie and get it approved by a health insurance company. Wouldn't a doctor have to sign off saying they needed it for the medical purpose and why?