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Obsessive-Compulsive and Related Disorders: A New Category in DSM-5 

Obsessive-Compulsive and Related Disorders: A New Category in DSM-5
Obsessive-Compulsive and Related Disorders: A New Category in DSM-5

Katharine A. Phillips

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date: 26 June 2022

The category of Obsessive-Compulsive and Related Disorders (OCRDs) is new to DSM-5 and was one of the more interesting, potentially impactful changes in the revised manual. The new DSM-5 chapter contains OCD, body dysmorphic disorder (BDD), hoarding disorder, trichotillomania (hair-pulling disorder), and excoriation (skin-picking) disorder. The addition of the new OCRD chapter to DSM-5, and grouping these disorders together, has diagnostic, clinical, and research implications. This chapter reviews why and how this new category was added to DSM-5, considers whether this grouping of disorders is correct, and examines the pros and cons of the change. The introduction OCRDs in DSM-5 had wide support. However, the current classification is not perfect, and much more research is needed to establish veridical relationships among disorders. In the meantime, it is hoped that these changes to DSM-5 yield advances in research and improvements in patient care.

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