This chartbook uses combined 2015 to 2019 data from the National Survey on Drug Use and Health (NSDUH) to present nationally representative estimates of mental health service utilization among adults aged 18 or older and adolescents aged 12 to 17 within different racial/ethnic groups in the United States. The percentages are annual averages.

This handbook reviews Medicaid and its role in financing services and treatment for mental illness and substance use disorders. It discusses services included in state Medicaid plans and other factors related to Medicaid, such as reimbursement.