Mich. Comp. Laws § 500.625

Sec. 625. Any insurer authorized to write automobile bodily injury liability insurance policies may, by an endorsement attached to or as a part of such a policy, insure any person or in behalf of any person for expense or disability including death growing out of any accidental injury incurred while driving, riding in, entering, alighting from, or through being struck by, any motor vehicle. Such coverage shall not be subject to provisions of this code otherwise applicable to disability insurance.