Obsessive-compulsive disorder (OCD) was considered an anxiety disorder in the past. Today, OCD is classified in the category of “Obsessive-Compulsive and Related Disorders” in the Diagnostic and Statistical Manual of Mental Disorders (DSM-V-TR) along with:
Body dysmorphic disorder
Trichotillomania (hair-pulling disorder)
Hoarding disorder
Excoriation (skin-picking) disorder