'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.[Pre-1992 Revision Citations: subdivision (1) formerly 16-14-9.1-1(a); subdivision (2) formerly 16-13-21-1.]As added by P.L.2-1992, SEC.1. Amended by P.L.117-2015, SEC.11; P.L.205-2023, SEC.3.
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