Ohio Rev. Code § 4123.542
An employee or the dependents of an employee who receive a decision on the merits of a claim for compensation or benefits under this chapter or Chapter 4121., 4127., or 4131. of the Revised Code shall not file a claim for the same injury, occupational disease, or death in another state under the workers' compensation laws of that state. Except as otherwise provided in division (H) of section 4123.54 of the Revised Code, an employee or the employee's dependents who receive a decision on the merits of a claim for compensation or benefits under the workers' compensation laws of another state shall not file a claim for compensation and benefits under this chapter or Chapter 4121., 4127., or 4131. of the Revised Code for the same injury, occupational disease, or death.
As used in this section, "a decision on the merits" means a decision determined or adjudicated for compensability of a claim and not on jurisdictional grounds.
R.C. §4123.542