Ohio Rev. Code § 5122.18
Whenever a person has been involuntarily detained at or admitted to a hospital, community mental health services provider, or other facility at the request of anyone other than the person's legal guardian, spouse, or next of kin under this chapter, the chief clinical officer of the hospital, services provider, or other facility in which the person is temporarily detained under section 5122.17 of the Revised Code shall immediately notify the person's legal guardian, spouse or next of kin, and counsel, if these persons can be ascertained through exercise of reasonable diligence. If a person voluntarily remains at or is admitted to a hospital, services provider, or other facility, such notification shall not be given without the person's consent. The chief clinical officer of the hospital, services provider, or other facility shall inform a person voluntarily remaining at or admitted to a hospital, services provider, or other facility that the person may authorize such notification.
R.C. § 5122.18