A person who has a severe, chronic disability attributable to a mental or physical impairment or to a combination of mental and physical impairments that is likely to continue indefinitely and that results in a substantial functional limitation in three (3) or more of the following areas of major life activity: self-care, receptive and expressive language, learning, mobility, self-direction, capacity for independent living and economic self-sufficiency; and requires a combination or sequence of special interdisciplinary or generic care, treatment or other services that are individually planned and coordinated to allow the person to function in, and contribute to, a residential neighborhood. (PZSC § 03-15-058)