F03Unspecified dementia
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 F00-F09
- Organic, including symptomatic, mental disorders
- Official Vietnamese name
- Sa sút trí tuệ không xác định
- Additional WHO coding guidance
- Incl.: Presenile: dementia NOS psychosis NOS primary degenerative dementia NOS senile: dementia: NOS depressed or paranoid type psychosis NOS Use additional code, if desired, to indicate delirium or acute confusional state superimposed on dementia. Excl.: senility NOS (R54)
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.
