<unk>  (OSDD) is a mental health diagnosis for pathological dissociation that matches the DSM-5 criteria for a<unk>  disorder, but does not fit the full criteria for any of the specifically identified subtypes, which include<unk>  identity disorder,<unk>  amnesia, and depersonalization/derealization disorder, and the reasons why the previous diagnoses were not met are<unk> . "Unspecified<unk>  disorder" is given when the clinician does not give a reason. The International Statistical Classification of Diseases and Related Health Problems (ICD-10) refers to the diagnosis as "Other<unk>  and conversion disorders". Under the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM), it was known as<unk>  disorder not otherwise<unk> " (DDNOS). Examples of OSDD include chronic and recurrent syndromes of mixed<unk>  symptoms, identity disturbance due to prolonged and intense coercive persuasion, disorders similar to<unk>  identity disorder, acute<unk>  reactions to stressful events, and<unk>  trance. OSDD is the most common<unk>  disorder and is diagnosed in 40% of<unk>  disorder cases. It is often co-morbid with other mental illnesses such as complex posttraumatic stress disorder, major depressive disorder, generalized anxiety disorder, personality disorders, substance use disorders, and eating disorders. There are currently no available drugs that treat<unk>  symptoms directly; however,<unk>  conditions appear to respond well to psychotherapy.
Other specified dissociative disorder
Unitary psychosis
Malingering of post-traumatic stress disorder
Transference neurosis
Jurosomatic illness
Mass psychogenic illness
Posttraumatic embitterment disorder
Atypical depression