Psychiatric disability refers to a psychiatric disorder associated with functional limitations that prevent achievement of age-appropriate goals. The nomenclature and diagnostic criteria for psychiatric disabilities vary widely, however, across the mental health, rehabilitation, and social security disability systems. Common mental disorders refer to psychiatric disorders that are less disabling than serious mental illness but still impact role functioning. Depression is probably the widest-ranging psychiatric disorder in terms of severity and duration. Substance abuse disorder is among the most common co-occurring disorders in all psychiatric disabilities, affecting 50" of people with psychiatric disabilities at some point in their lifetime. Anxiety disorders are highly comorbid with other psychiatric diagnosevs, including other anxiety disorders, mood and eating disorders, and schizophrenia spectrum disorders. Victimization of people with psychiatric disabilities is a serious public health problem, as they are 11 times more likely to be victimized by violence and crime than the general population.