In this subchapter:
(1) "Minor" means an individual younger than 18 years of age.
(2) "Serious emotional disturbance" means a mental, behavioral, or emotional disorder of sufficient duration to result in functional impairment that substantially interferes with or limits an individual's role or ability to function in family, school, or community activities.
(3) "System of care framework" means a framework for collaboration among state agencies, minors who have a serious emotional disturbance or are at risk of developing a serious emotional disturbance, and the families of those minors that improves access to services and delivers effective community-based services that are family-driven, youth- or young adult-guided, and culturally and linguistically competent.