In this subchapter:
(1) "Children with severe emotional disturbances" includes children:
(A) who are at risk of incarceration or placement in a residential mental health facility;
(B) who are students in a special education program under Subchapter A, Chapter 29, Education Code;
(C) with a substance use disorder or a developmental disability; and
(D) for whom a court may appoint the Department of Family and Protective Services as managing conservator.
(2) "Community resource coordination group" means a coordination group established under a memorandum of understanding adopted under Subchapter D, Chapter 522.
(3) "Systems of care services" means a comprehensive state system of mental health services and other necessary and related services that is organized as a coordinated network to meet the multiple and changing needs of children with severe emotional disturbances and their families.