ICD-11 Criteria for Behavioural or Psychological Disturbances in Dementia (6D86) 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. Exclusions: Secondary mental or behavioural syndromes associated with disorders or diseases classified elsewhere (BlockL1‑6E6) 6D86.0         Psychotic Symptoms in Dementia In addition to the cognitive disturbances characteristic of dementia, the current clinical picture includes clinically significant delusions or hallucinations. Exclusions:               Schizophrenia or other primary psychotic disorders (BlockL1‑6A2) Secondary psychotic syndrome (6E61)