““300.1 Hysterical neurosis This neurosis is characterized by an involuntary psychogenic loss or disorder of function. Symptoms characteristically begin and end suddenly in emotionally charged situations and are symbolic of the underlying conflicts. Often they can be modified by suggestion alone. This is a new diagnosis that encompasses the former diagnoses "Conversion reaction" and "Dissociative reaction" in DSM-I. This distinction between conversion and dissociative reactions should be preserved by using one of the following diagnoses whenever possible. 300.14* Hysterical neurosis, dissociative type* In the dissociative type, alterations may occur in the patient's state of consciousness or in his identity, to produce such symptoms as amnesia, somnambulism, fugue, and multiple personality. DSM-II (1968)””
