Comorbidity in obsessive-compulsive disorder (OCD): A report from the International College of Obsessive-Compulsive Spectrum Disorders (ICOCS)

High comorbidity of some OCSDs in OCD supports the formal recognition of these conditions in a separate chapter of the nosology. Rates of other Axis I disorders are high in both the general population and in OCSDs, indicating that these may often also need to be the focus of intervention in OCD.