J31Chronic rhinitis, nasopharyngitis and pharyngitis
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 J31 directly
Use the most specific code supported by the record.
- Chapter X
- Diseases of the respiratory system
- Group J30-J39
- Other diseases of upper respiratory tract
- Official Vietnamese name
- Viêm mũi, viêm mũi họng và/hoặc viêm họng mạn tính
Related J31 codes
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.