Ind. Code § 16-18-2-293.1

Sec. 293.1. "Private mental health institution", for purposes of IC 16-19, means an inpatient hospital setting licensed pursuant to IC 12-25, including inpatient and outpatient services provided in that setting, for treatment and care of individuals with psychiatric disorders or chronic addictive disorders, or both, that is physically, organizationally, and programmatically independent of any hospital or health facility licensed by the state department.