6B21

ICD-11 MMS 2026-01

Body dysmorphic disorder

Description

Body Dysmorphic Disorder is characterised by persistent preoccupation with one or more perceived defects or flaws in appearance that are either unnoticeable or only slightly noticeable to others. Individuals experience excessive self-consciousness, often with ideas of reference (i.e., the conviction that people are taking notice, judging, or talking about the perceived defect or flaw). In response to their preoccupation, individuals engage in repetitive and excessive behaviours that include repeated examination of the appearance or severity of the perceived defect or flaw, excessive attempts to camouflage or alter the perceived defect, or marked avoidance of social situations or triggers that increase distress about the perceived defect or flaw. The symptoms are sufficiently severe to result in significant distress or significant impairment in personal, family, social, educational, occupational or other important areas of functioning.

Excludes

  • 6B80 – Anorexia Nervosa
  • 6C20 – Bodily distress disorder
  • http://id.who.int/icd/entity/1100199287 – Concern about body appearance

Exclusions from above levels

  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Child codes

  • 6B21.0 – Body dysmorphic disorder with fair to good insight
  • 6B21.1 – Body dysmorphic disorder with poor to absent insight
  • 6B21.Z – Body dysmorphic disorder, unspecified

Sibling codes

  • 6B20 – Obsessive-compulsive disorder
  • 6B22 – Olfactory reference disorder
  • 6B23 – Hypochondriasis
  • 6B24 – Hoarding disorder
  • 6B25 – Body-focused repetitive behaviour disorders
  • 6B2Y – Other specified obsessive-compulsive or related disorders
  • 6B2Z – Obsessive-compulsive or related disorders, unspecified

Foundation entity

Body dysmorphic disorder – http://id.who.int/icd/entity/731724655

Part of: 06: Mental, behavioural or neurodevelopmental disorders