1. Dual diagnosis is an expectation, not an exception.
     
  2. All ICOPSD (Individuals with co-occurring psychiatric and substance disorders) are not the same; the national consensus four quadrant model for categorizing co-occurring disorders (NASMHPD, 1998) can be used as a guide for service planning on the system level.
     
  3. Empathic, hopeful, integrated treatment relationships are one of the most important contributors to treatment success in any setting; provision of continuous integrated treatment relationships is an evidence based best practice for individuals with the most severe combinations of psychiatric and substance difficulties.
     
  4. Case management and care must be balanced with empathic detachment, expectation, contracting, consequences, and contingent learning for each client, and in each service setting.
     
  5. When psychiatric and substance disorders coexist, both disorders should be considered primary, and integrated dual (or multiple) primary diagnosis-specific treatment is recommended.
     
  6. Both mental illness and addiction can be treated within the philosophical framework of a "disease and recovery model" (Minkoff, 1989) with parallel phases of recovery (acute stabilization, motivational enhancement, active treatment, relapse prevention, and rehabilitation/recovery), in which interventions are not only diagnosis-specific, but also specific to phase of recovery and stage of change.
     
  7. There is no single correct intervention for ICOPSD; for each individual interventions must be individualized according to quadrant, diagnoses, level of functioning, external constraints or supports, phase of recovery/stage of change, and (in a managed care system) multidimensional assessment of level of care requirements.
     
  8. Clinical outcomes for ICOPSD must also be individualized, based on similar parameters for individualizing treatment interventions.
     
  9. The system of care operates in partnership with consumers, family members and concerned significant others and a continuous effort is made to involve the individual and the family at the system, program and individual levels.