6B00

ICD-11 MMS 2026-01

Generalised anxiety disorder

Description

Generalised anxiety disorder is characterised by marked symptoms of anxiety that persist for at least several months, for more days than not, manifested by either general apprehension (i.e. ‘free-floating anxiety’) or excessive worry focused on multiple everyday events, most often concerning family, health, finances, and school or work, together with additional symptoms such as muscular tension or motor restlessness, sympathetic autonomic over-activity, subjective experience of nervousness, difficulty maintaining concentration, irritability, or sleep disturbance. The symptoms result in significant distress or significant impairment in personal, family, social, educational, occupational, or other important areas of functioning. The symptoms are not a manifestation of another health condition and are not due to the effects of a substance or medication on the central nervous system.

Index terms

  • Generalised anxiety disorder
  • Anxiety neurosis
  • GAD - [generalised anxiety disorder]
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  • anxiety generalised
  • neurotic anxiety
  • psychoneurotic anxiety

Exclusions from above levels

  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Sibling codes

  • 6B01 – Panic disorder
  • 6B02 – Agoraphobia
  • 6B03 – Specific phobia
  • 6B04 – Social anxiety disorder
  • 6B05 – Separation anxiety disorder
  • 6B06 – Selective mutism
  • 6B0Y – Other specified anxiety or fear-related disorders
  • 6B0Z – Anxiety or fear-related disorders, unspecified

Foundation entity

Generalised anxiety disorder – http://id.who.int/icd/entity/1712535455

Allowed postcoordination axes

Part of: 06: Mental, behavioural or neurodevelopmental disorders