F63.9Habit and impulse disorder, unspecified
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 F60-F69
- Disorders of adult personality and behaviour
- Official Vietnamese name
- Rối loạn thói quen và/hoặc xung động, không xác định
- Additional WHO coding guidance
- disorder
Related F63 codes
F63
Habit and impulse disorders
F63.0
Primary diagnosis candidate
Pathological gambling
F63.1
Primary diagnosis candidate
Pathological fire- setting [pyromania]
F63.2
Primary diagnosis candidate
Pathological stealing [kleptomania]
F63.3
Primary diagnosis candidate
Trichotillomania
F63.8
Primary diagnosis candidate
Other habit and impulse disorders
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.
