Sec. 226. "Mental illness" or "mentally ill" means the following: (1) For purposes of IC 12-23-5, IC 12-24, and IC 12-26, a psychiatric disorder that: (A) substantially disturbs an individual's thinking, feeling, or behavior; and (B) impairs the individual's ability to function. The term includes intellectual disability, alcoholism, and addiction to narcotics or dangerous drugs, and, for purposes of IC 12-26-5, the term includes temporary impairment as a result of alcohol or drug use. (2) For purposes of IC 12-28-4 and IC 12-28-5, a psychiatric disorder that: (A) substantially disturbs an individual's thinking, feeling, or behavior; and (B) impairs the individual's ability to function. The term does not include developmental disability. As added by P.L.145-2026, SEC.63.