Policy and practice implications of epidemiological surveys on co-occurring mental and substance use disorders.

This article describes factors that influence national policy and practice, with particular focus on the implications of epidemiological survey research. Examples of areas of concern to policymakers include treatment-seeking patterns, access to care at points of service in public health and social service systems, evidence-based practices, workforce development, and the complexities of reimbursement. In responding to data on systemic barriers to care, the Substance Abuse and Mental Health Services Administration (SAMHSA) has sought to promote a no wrong door strategy to address the needs of persons with co-occurring disorders (CODs) involving their mental health and substance use. Examples of SAMHSA programs and policies addressing CODs discussed in this article include targeted partnerships with the states, mechanisms to enhance system infrastructure, technical assistance, and initiatives with special populations.