Ohio Revised Code Title XXXIX. Insurance § 3923.37

(A) No individual or group sickness and accident insurance policy shall be delivered, issued for delivery, or renewed in this state that excludes or reduces the benefits payable to or on behalf of an insured because benefits are also payable or have been paid under a supplemental sickness and accident policy to which all of the following apply:

(B) This section applies to supplemental sickness and accident policies irrespective of the mode or channel of premium payment to the insurer or of any reduction in the premium by virtue of the insured's membership in any organization or the insured's status as an employee.