Ohio Rev. Code Ann. § 2317.43
(A)
(B)
(1) When made as part of a review conducted in good faith by the health care provider, an employee of the health care provider, or a representative of the health care provider into the cause of or reasons for an unanticipated outcome of medical care, the following communications are inadmissible as evidence in any civil action brought by an alleged victim of an unanticipated outcome of medical care, in any arbitration proceeding related to such a civil action, or in any other civil proceeding, unless the communications are recorded in the medical record of the alleged victim, subject to division (A)(2) of this section:
(C) For purposes of this section, unless the context otherwise requires: