According to the Catholic Church is the individual mandate in the Affordable Care Act an unjust law?

After going off on HIPAA one of the kids brought up Barack Obama and said that, "he's going to make Catholic Hospitals perform abortions." I said that wasn't exactly true, for now, at least, but he was making Catholic Hospitals (and everyone) purchase coverage for something that would allow them to procure an abortion. So, I know that part is just immoral and evil, but is mandating that families get Health Insurance just for existing something that conflicts with the principle of subsidiarity ? Has anything been published that indicates whether the Catholic position is for purchasing or not purchasing health insurance to be purely a matter of choice left up to the heads of families?