6D86

ICD-11 MMS 2026-01

Behavioural or psychological disturbances in dementia

Description

In addition to the cognitive disturbances characteristic of dementia, the current clinical picture includes clinically significant behavioural or psychological disturbances.

Coding note

These categories should never be used in primary tabulation. The codes are provided for use as supplementary or additional codes when it is desired to identify the presence of behavioural or psychological disturbance in dementia. Code all that apply.

Coding note from above levels

This category should only be used for primary tabulation, if the aetiology of the dementia is unknown. If the aetiology of the dementia is known code to the aetiology of the dementia for primary tabulation. When dementia is due to multiple aetiologies, code all that apply.

Excludes

  • http://id.who.int/icd/entity/302122526 – Secondary mental or behavioural syndromes associated with disorders or diseases classified elsewhere

Exclusions from above levels

  • 6A00 – Disorders of intellectual development
  • 6D70 – Delirium
  • http://id.who.int/icd/entity/1516623224 – Neurodevelopmental disorders
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  • MB20.0 – Stupor
  • MB20.1 – Coma
  • MG2A – Ageing associated decline in intrinsic capacity
  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Child codes

  • 6D86.0 – Psychotic symptoms in dementia
  • 6D86.1 – Mood symptoms in dementia
  • 6D86.2 – Anxiety symptoms in dementia
  • 6D86.3 – Apathy in dementia
  • 6D86.4 – Agitation or aggression in dementia
  • 6D86.5 – Disinhibition in dementia
  • 6D86.6 – Wandering in dementia
  • 6D86.Y – Other specified behavioural or psychological disturbances in dementia
  • 6D86.Z – Behavioural or psychological disturbances in dementia, unspecified

Sibling codes

  • 6D80 – Dementia due to Alzheimer disease
  • 6D81 – Dementia due to cerebrovascular disease
  • 6D82 – Dementia due to Lewy body disease
  • 6D83 – Frontotemporal dementia
  • 6D84 – Dementia due to psychoactive substances including medications
  • 6D85 – Dementia due to diseases classified elsewhere
  • 6D8Y – Dementia, other specified cause
  • 6D8Z – Dementia, unknown or unspecified cause

Foundation entity

Behavioural or psychological disturbances in dementia – http://id.who.int/icd/entity/148241182

Allowed postcoordination axes

Part of: 06: Mental, behavioural or neurodevelopmental disorders