F66Psychological and behavioural disorders associated with sexual development and orientation
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use F66 directly
Use the most specific code supported by the record.
- Chapter V
- Mental and behavioural disorders
- Group F60-F69
- Disorders of adult personality and behaviour
- Official Vietnamese name
- Rối loạn tâm lý và/hoặc hành vi liên quan với sự phát triển và/hoặc khuynh hướng tình dục
- Additional WHO coding guidance
- Note: Sexual orientation by itself is not to be regarded as a disorder.
Related F66 codes
F66.0
Primary diagnosis candidate
Sexual maturation disorder
F66.1
Primary diagnosis candidate
Egodystonic sexual orientation
F66.2
Primary diagnosis candidate
Sexual relationship disorder
F66.8
Primary diagnosis candidate
Other psychosexual development disorders
F66.9
Primary diagnosis candidate
Psychosexual development 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.
