Ohio Rev. Code Ann. § 3902.51
(A)
(1)
(a) A health plan issuer shall reimburse an out-of-network provider for unanticipated out-of-network care when both of the following apply:
(b) A health plan issuer shall reimburse both of the following for emergency services provided to a covered person at an out-of-network emergency facility:
(c) A health plan issuer shall reimburse both of the following for emergency services provided to a covered person by an out-of-network ambulance:
(3) For purposes of sections 3902.50 to 3902.54 of the Revised Code:
(B)
(1) Unless the provider, facility, emergency facility, or ambulance wishes to negotiate reimbursement under division (B)(2) of this section, the reimbursement required to be paid to the provider, facility, emergency facility, or ambulance under division (A) of this section shall be the greatest of the following amounts:
(C)
(E) For health care services, other than those described in division (A) of this section, that are covered under a health benefit plan but are provided to a covered person by an out-of-network provider at an in-network facility, both of the following apply:
(1) For services provided in this state, the provider shall not bill the covered person for the difference between the health plan issuer's out-of-network reimbursement and the provider's charge for the services unless all of the following conditions are met: