Diagnostic assessments are provided for individuals seeking treatment for behavioral health disorders. When the possibility of a behavioral health disorder has been established, through screening, history, or additional clinical findings, the comprehensive diagnostic assessment is used to: determine the type and severity of the behavioral health disorder and to find out if recovery from one or more disorders need to be part of a treatment plan. The comprehensive diagnostic assessment is completed by a professional clinician to determine the level of care that is most appropriate as well as other areas to be addressed in the treatment plan.