6B45

ICD-11 MMS 2026-01

Disinhibited social engagement disorder

Description

Disinhibited social engagement disorder is characterised by grossly abnormal social behaviour, occurring in the context of a history of grossly inadequate child care (e.g., severe neglect, institutional deprivation). The child approaches adults indiscriminately, lacks reticence to approach, will go away with unfamiliar adults, and exhibits overly familiar behaviour towards strangers. Disinhibited social engagement disorder can only be diagnosed in children, and features of the disorder develop within the first 5 years of life. However, the disorder cannot be diagnosed before the age of 1 year (or a developmental age of less than 9 months), when the capacity for selective attachments may not be fully developed, or in the context of Autism spectrum disorder.

Index terms

  • Disinhibited social engagement disorder
  • disinhibited attachment disorder
  • disinhibited attachment disorder of childhood
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  • disinhibited attachment of institutionalization

Excludes

  • 6A02 – Asperger syndrome
  • 6A05 – Attention deficit hyperactivity disorder
  • 6B43 – Adjustment disorder
  • 6B44 – reactive attachment disorder of childhood

Exclusions from above levels

  • QD85 – Burnout
  • QE84 – Acute stress reaction
  • QE62 – Uncomplicated bereavement

Sibling codes

  • 6B40 – Post traumatic stress disorder
  • 6B41 – Complex post traumatic stress disorder
  • 6B42 – Prolonged grief disorder
  • 6B43 – Adjustment disorder
  • 6B44 – Reactive attachment disorder
  • 6B4Y – Other specified disorders specifically associated with stress
  • 6B4Z – Disorders specifically associated with stress, unspecified

Foundation entity

Disinhibited social engagement disorder – http://id.who.int/icd/entity/467941148

Part of: 06: Mental, behavioural or neurodevelopmental disorders