"Disability" means a disability attributable to cognitive or physical impairment or a combination of cognitive and physical impairments that result in substantial functional limitations in one or more of the following areas of major life activities:
Self-care
Receptive and expressive language
Learning
Mobility
Self-direction
Capacity for independent living
Economic self-sufficiency
Cognitive functioning
Emotional adjustment
"Severe disability" means a severe chronic disability attributable to cognitive or physical impairment or a combination of cognitive and physical impairments, which is likely to continue indefinitely, and which results in substantial functional limitation in three or more of the major life activities specified under the definition of “disability.”