Ohio Rev. Code Ann. § 5162.80
(A) A provider of medical services licensed, accredited, or certified under Chapter 3721., 3727., 4715., 4725., 4731., 4732., 4734., 4747., 4753., 4755., 4757., or 4779. of the Revised Code shall provide in writing, before products, services, or procedures are provided, a reasonable, good-faith estimate of all of the following for the provider's non-emergency products, services, or procedures: