Mich. Comp. Laws § 500.3187

Sec. 3187. A managed care option must provide for all of the following: (a) That personal protection insurance benefits are primary and will not be coordinated with other health and accident coverage on the individual claiming personal protection insurance benefits under the policy with the managed care option. (b) That personal protection insurance benefits must be exhausted by the individual claiming those benefits under the policy with the managed care option before the individual may seek benefits from another health or accident coverage provider. (c) That deductibles, co-pays, or other similar sanctions will not be assessed or collected from other health and accident coverage providers for the individual claiming personal protection insurance benefits under the policy with the managed care option.