F72.9Severe mental retardation, without mention of impairment of behaviour
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 F70-F79
- Mental retardation
- Official Vietnamese name
- Chậm phát triển trí tuệ nặng, không đề cập đến suy giảm hành vi
Related F72 codes
F72
Severe mental retardation
F72.0
Primary diagnosis candidate
Severe mental retardation, with the statement of no, or minimal, impairment of behaviour
F72.1
Primary diagnosis candidate
Severe mental retardation, significant impairment of behaviour requiring attention or treatment
F72.8
Primary diagnosis candidate
Severe mental retardation, other impairments of behaviour
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.
