Mich. Comp. Laws § 400.112e[1]: Payments not required; amounts constituting payment in full.

Sec. 112e.

Notwithstanding any other provision of law and through September 30, 1998, the department is not required to pay deductible, coinsurance, or copayment medicare cost-sharing for a service to the extent that the payment, when combined with a payment made under title XVIII for the service, would exceed the payment amount otherwise required under the state plan for the service to be provided to an eligible recipient who is not a medicare beneficiary.

Except for a state plan-approved medical services copayment, the amounts paid by title XVIII and under the state plan for a service, if any, shall constitute payment in full for the service through September 30, 1998.