Ohio Rev. Code Ann. § 1751.52 – Confidentiality of information

(A) All applications, filings, and reports required under this chapter shall be treated as public documents after the date the application, filing, or report becomes effective, regardless of the application of the Uniform Trade Secrets Act set forth in sections 1333.61 to 1333.69 of the Revised Code.
(B) Any data or information pertaining to the diagnosis, treatment, or health of any enrollee or applicant for enrollment that is obtained by the health insuring corporation from the enrollee or applicant, or from any health care facility or provider, shall be held in confidence and shall not be disclosed to any person except under one of the following circumstances:
1. (1) To the extent that it may be necessary to carry out the purposes of this chapter;
2. (2) Upon the express consent of the enrollee or applicant;
3. (3) Pursuant to statute or court order for the production of evidence;
4. (4) In the event of claim litigation between such person and the health insuring corporation wherein such data or information is pertinent.
(C) A health insuring corporation shall be entitled to claim any statutory privileges against disclosure under division (B) of this section that the facility or provider who furnished the data or information to the health insuring corporation is entitled to claim.