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Definition

of

Dual diagnosis

from

NICE Guideline NG58 - Coexisting severe mental illness and substance misuse: community health and social care services

Source

Dual diagnosis usually refers to mental illness combined with substance misuse. But it may also be used to describe a number of other conditions, including physical health problems. In the UK social care sector, the term is sometimes used for people who have both a learning disability and a mental illness.

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