Synopsis As Introduced Provides that the Act may be referred to as the Children and Young Adult Mental Health Crisis Act. Amends the Illinois Public Aid Code. Requires the Department of Healthcare and Family Services to restructure the Family Support Program (Program) to: (i) enable early treatment of a child or young adult with serious mental health needs; (ii) align the program with system of care principles; and (iii) include both community-based and residential treatment services. Contains provisions on the new hallmarks of the Program; federal Medicaid matching dollars; an In-Home Therapy Pilot Program; and other matters. Amends the Illinois Insurance Code. Requires a group or individual policy of accident and health insurance, or managed care plan, that is amended, delivered, issued, or renewed after June 30, 2020 to provide coverage for: (i) coordinated specialty care for first episode psychosis treatment and (ii) assertive community treatment and community support team treatment. Contains provisions concerning mental health professionals; service payments; and other matters. Makes conforming changes to other Acts. Amends the Substance Use Disorder Act. Requires the Department of Human Services to allow outpatient substance use treatment providers to keep a substance use treatment case open for 90 days when a person has not received a treatment service during such period. Amends the Adoption Act. Requires the Department of Children and Family Services to establish and maintain a toll-free number to respond to requests from the public about its post-placement and post-adoption support services; and to review and update its Post Adoption and Guardianship Services booklet. Requires the Department and the Department of Healthcare and Family Services to coordinate in the development of specified resources. Effective immediately.