Obsessive-Compulsive Disorder

**Definition:** An anxiety disorder characterized by recurrent, persistent obsessions or compulsions. Obsessions are the intrusive ideas, thoughts, or images that are experienced as senseless or repugnant. Compulsions are repetitive and seemingly purposeful behavior which the individual generally recognizes as senseless and from which the individual does not derive pleasure although it may provide a release from tension.

**Tree numbers:** - F03.080.600

**Synonyms:** - Anankastic Personality - Neurosis, Obsessive-Compulsive