Your 'right' to make medical choices?... Sure, but if that medical system uses money to transact, then it is dependent on the capacity to pay, which goes to a corps right to conduct business in any manner they see fit... On this note, I always thought that it was the decision of a medical professional to make the decisions on the course(s) of action to take - not the patient.
Yes, the right to make medical choices. Under Canadian law, it's also known as the right to life, liberty, and security of person. Has no one ever taught you that you have a say in your medical care? Your doctor can't MAKE you take medications, they can't dictate the course of action, unless you are declared incompetent.
As to your assertion that it's dependent on capacity to pay.... they're claiming religious freedom of a corporation, not lack of ability to afford it.