What DSM category does Obsessive Compulsive Disorder fall in?

Obsessive-Compulsive Disorder (OCD) falls under the category of "Obsessive-Compulsive and Related Disorders" in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). This category includes disorders characterized by the presence of obsessions (intrusive thoughts) and/or compulsions (repetitive behaviors or mental acts). OCD is marked by significant distress and impairment in functioning due to these symptoms.