[Psychiatric disorders in people with intellectual disability or borderline intellectual disability: an introduction].

BACKGROUND: Psychiatric disorders are also prevalent in people with intellectual disability and borderline intellectual disability. AIM: To provide an introduction of the organisation of care and its development for people with intellectual disability and borderline intellectual disability. METHOD: A description of specific concerns in prevalence, presentation, diagnosis, and a short summary of (the evolution) of care in the Netherlands and Belgium. RESULTS: Compared to the end of last century there is more attention for the needs of this group. The provided care is also more professional. CONCLUSION: Although not always easy in practice, good care for people with intellectual disability and borderline intellectual disability, and comorbid psychiatric problems, requires more cooperation and the use of shared knowledge and expertise.