Ohio Rev. Code Ann. § 1337.11
As used in sections 1337.11 to 1337.17 of the Revised Code:
(C) "Comfort care" means any of the following:
(I) "Health care facility" means any of the following:
(V) "Permanently unconscious state" means a state of permanent unconsciousness in a principal that, to a reasonable degree of medical certainty as determined in accordance with reasonable medical standards by the principal's attending physician and one other physician who has examined the principal, is characterized by both of the following:
(BB) "Terminal condition" means an irreversible, incurable, and untreatable condition caused by disease, illness, or injury from which, to a reasonable degree of medical certainty as determined in accordance with reasonable medical standards by a principal's attending physician and one other physician who has examined the principal, both of the following apply: