F81.3Mixed disorder of scholastic skills
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 hỗn hợp kỹ năng học đường
- Additional WHO coding guidance
- An ill-defined residual category of disorders in which both arithmetical and reading or spelling skills are significantly impaired, but in which the disorder is not solely explicable in terms of general mental retardation or of inadequate schooling. It should be used for disorders meeting the criteria for both F81.2 and either F81.0 or F81.1. Excl.: specific: disorder of arithmetical skills (F81.2) reading disorder (F81.0) spelling disorder (F81.1)
Related F81 codes
F81
Specific developmental disorders of scholastic skills
F81.0
Primary diagnosis candidate
Specific reading disorder
F81.1
Primary diagnosis candidate
Specific spelling disorder
F81.2
Primary diagnosis candidate
Specific disorder of arithmetical skills
F81.8
Primary diagnosis candidate
Other developmental disorders of scholastic skills
F81.9
Primary diagnosis candidate
Developmental disorder of scholastic skills, 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.
