VITiếng Việt
ICD-10 Vietnam

F84.4Overactive disorder associated with mental retardation and stereotyped movements

Code usage status

Primary diagnosis

May be used as the primary diagnosis

Apply only when it matches the confirmed diagnosis and the documented clinical record.

Specificity

Complete code in the classification

Use when the diagnosis matches and no exclusion applies.

Chapter V
Mental and behavioural disorders
Group F80-F89
Disorders of psychological development
Official Vietnamese name
Rối loạn tăng hoạt động kết hợp với chậm phát triển trí tuệ và/hoặc động tác định hình
Additional WHO coding guidance
An ill-defined disorder of uncertain nosological validity. The category is designed to include a group of children with severe mental retardation (IQ below 35) who show major problems in hyperactivity and in attention, as well as stereotyped behaviours. They tend not to benefit from stimulant drugs (unlike those with an IQ in the normal range) and may exhibit a severe dysphoric reaction (sometimes with psychomotor retardation) when given stimulants. In adolescence, the overactivity tends to be replaced by underactivity (a pattern that is not usual in hyperkinetic children with normal intelligence). This syndrome is also often associated with a variety of

Related F84 codes

F84 Pervasive developmental disorders F84.0 Primary diagnosis candidate Childhood autism F84.1 Primary diagnosis candidate Atypical autism F84.2 Primary diagnosis candidate Rett syndrome F84.3 Primary diagnosis candidate Other childhood disintegrative disorder F84.5 Primary diagnosis candidate Hội chứng Asperger F84.8 Primary diagnosis candidate Other pervasive developmental disorders F84.9 Primary diagnosis candidate Pervasive developmental disorder, unspecified

Clinical record checklist

View coding guide →
  • Confirm that the code matches the final documented diagnosis.
  • Use one primary-diagnosis code and record only relevant additional conditions.
  • Review Ministry indicators, inclusions, exclusions and notes.
  • Do not infer a diagnosis beyond the clinical record.

2026 regulatory basis

Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.