6B43ICD-11 MMS 2026-01
Adjustment disorder
Description
Adjustment disorder is a maladaptive reaction to an identifiable psychosocial stressor or multiple stressors (e.g. divorce, illness or disability, socio-economic problems, conflicts at home or work) that usually emerges within a month of the stressor. The disorder is characterised by preoccupation with the stressor or its consequences, including excessive worry, recurrent and distressing thoughts about the stressor, or constant rumination about its implications, as well as by failure to adapt to the stressor that causes significant impairment in personal, family, social, educational, occupational or other important areas of functioning. The symptoms are not better explained by another mental disorder (e.g., Mood Disorder, another Disorder Specifically Associated with Stress) and typically resolve within 6 months, unless the stressor persists for a longer duration.
Index terms
- Adjustment disorder
- adaptation reaction NOS
- adjustment reaction
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- brief situational non-psychotic disorder
- emotional crisis
- situational disorder
- situational disturbance
- situational maladjustment
- situational reaction
- situational reaction with maladjustment
- transient situational disturbance
- Adjustment reaction with destructiveness
- Embitterment reaction
Excludes
Sibling codes
6B40– Post traumatic stress disorder6B41– Complex post traumatic stress disorder6B42– Prolonged grief disorder6B44– Reactive attachment disorder6B45– Disinhibited social engagement disorder6B4Y– Other specified disorders specifically associated with stress6B4Z– Disorders specifically associated with stress, unspecified
Foundation entity
Adjustment disorder – http://id.who.int/icd/entity/264310751
Part of: 06: Mental, behavioural or neurodevelopmental disorders