That's a lingering question right now as the software was approved, but not specifically the hardware. I suspect it would be able to be covered, but as with any of those rules, it's kinda murky.
I suspect if it is, we'll see some interesting advertising / marketing from 3rd party resellers.
It's a very good question and Apple may already have an answer.
One of the interesting things I learned in my time building medical devices is the role of insurance reimbursement in the product development process. Before introducing a new device, or a new (blood) test, one of the questions Marketing has to answer is how difficult it will be to get reimbursement from insurance in the US.
It sounds kind of icky, but it's a real concern.
If insurance companies won't reimburse for a particular test or use of a device, then the users are far less likely to buy it, or in the case of a test, the physician may have to warn the patient that their insurance isn't likely to pay for it. This will probably lead the manufacturer to decide that it's too risky to proceed with development.
