For the purposes of section 17b-609, “persons with disabilities” means persons having disabilities which (1) are attributable to a mental or physical impairment or a combination of mental and physical impairments; (2) are likely to continue indefinitely; (3) result in functional limitations in one or more of the following areas of major life activity: Self care, receptive and expressive language, learning, mobility, self-direction, capacity for independent living or economic self-sufficiency; and (4) reflect the person’s need for a combination and sequence of special, interdisciplinary or generic care, treatment or other services which are of lifelong or extended duration and individually planned and coordinated.