Ohio Rev. Code Ann. § 3119.421

A health plan administrator that provides health insurance coverage for the children who are the subject of a child support order in accordance with the child support order or a notice sent by an employer pursuant to section 3119.36 of the Revised Code shall reimburse the individual who is designated to receive reimbursement in the child support order for covered out-of-pocket medical, optical, hospital, dental, or prescription expenses incurred on behalf of the children.