Ohio Revised Code Title XXIII. Courts Common Pleas § 2317.45

(1) “Health care provider” means any person or entity against whom a medical claim may be asserted in a civil action.

(2) “Insurer” means any public or private entity doing or authorized to do any insurance business in this state. “Insurer” includes a self-insuring employer and the United States centers for medicare and medicaid services.

(3) “Medical claim” has the same meaning as in section 2305.113 of the Revised Code.

(4) “Reimbursement determination” means an insurer's determination of whether the insurer will reimburse a health care provider for health care services and the amount of that reimbursement.

(5) “Reimbursement policies” means an insurer's policies and procedures governing its decisions regarding the reimbursement of a health care provider for health care services and the method of reimbursement.