Psychiatry and Psychology

Dissociative Identity Disorder

A dissociative disorder in which the individual adopts two or more distinct personalities. Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships. Transition from one personality to another is sudden.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A dissociative disorder in which the individual adopts two or more distinct personalities. Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships. Transition from one personality to another is sudden.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

18 entry terms
  • Multiple Identity Disorder
  • Multiple Personalities
  • Multiple Personality Disorder
  • Disorder, Dissociative Identity
  • Disorder, Multiple Identity
  • Disorder, Multiple Personality
  • Identity Disorder, Dissociative
  • Identity Disorder, Multiple
  • Multiple Identity Disorders
  • Multiple Personality
  • Multiple Personality Disorders
  • Personalities, Multiple
  • Personality Disorder, Multiple
  • Personality Disorders, Multiple
  • Personality, Multiple
  • Dual Personality
  • Personalities, Dual
  • Personality, Dual

MeSH Record

Aspects Covered

31 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, rehabilitation, surgery, therapy, urine, virology.

MeSH Record

History Note

2019(1968)

MeSH Hierarchy

Tree Number

MeSH Record

NLM Classification

WM 173.6

AMA Style

References

  1. National Library of Medicine. Dissociative Identity Disorder. Medical Subject Headings (MeSH). 2026. Unique ID D009105. http://id.nlm.nih.gov/mesh/2026/D009105
  2. Dissociative Identity Disorder. In: Wikipedia. https://en.wikipedia.org/wiki/Dissociative_identity_disorder
  3. Dissociative Identity Disorder. In: Wikidata. https://www.wikidata.org/wiki/Q18657