multiple personality disorder A dissociative disorder that involves the simultaneous display of multiple distinct identities or personalities. DOID:10934 Dissociative identity disorder ICD9CM:300.14 MSH:D009105 SNOMEDCT_2010_1_31:192428007 SNOMEDCT_2010_1_31:31611000 UMLS_CUI:C0026773 disease_ontology 300.14 The relationship among the multiple personalities in the individual are often complex. Only one personality is evident at any one time, and the alternation of personalities usually produces periods of amnesia in the personality that has been displaces. However, one or several personalities may be aware of the existence of the others. The personalities usually differ from one another and sometimes are direct opposite. The disturbance is not due to the direct physiological effects of a substance or a general medical condition. "Understanding abnormal behavior". David Sue, Derald Wing Sue, Stanley Sue. DSM-IV-TR (american Psychiatric Association) MFOMD_0000077 F44.81 Dissociative identity disorder(Formerly Multiple personality disorder) Is a dramatic condition in which two or more relatively independent personalities appear to exist in one person. Understanding abnormal behavior. David Sue, Derald Wing Sue, Stanley Su dissociative identity disorder trastorno de identidad disociativo dissociative disorder