ESUCP-Adult Services-Residential

Integrated Dual Diagnosis Treatment Teams

Integrated dual diagnosis treatment (IDDT) is an evidence-based model that addresses a person’s substance use in the context of the treatment of their mental illness. IDDT involves a set of core principles and a combination of clinical and rehabilitative interventions that address all aspects of a person’s life. Within IDDT, both disorders are addressed at the same time with close collaboration between a multidisciplinary team, or by a single provider, trained and competent in co-occurring disorders.

Treatment by providers in different locations may be considered integrated if there is very close collaboration, such as shared treatment planning. IDDT seeks to treat the whole person instead of looking only at one issue at a time. Mental illnesses and substance use disorders are seen as intertwined, not separate. The evidence-based model of IDDT is based on multiple controlled studies indicating improved outcomes for individuals with severe mental illness and a co-occurring substance abuse disorder when all elements of the model are maintained.

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