J01.9Acute sinusitis, unspecified
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 X
- Diseases of the respiratory system
- Group J00-J06
- Acute upper respiratory infections
- Official Vietnamese name
- Viêm xoang cấp tính, không xác định
Related J01 codes
J01
Acute sinusitis
J01.0
Primary diagnosis candidate
Acute maxillary sinusitis
J01.1
Primary diagnosis candidate
Acute frontal sinusitis
J01.2
Primary diagnosis candidate
Acute ethmoidal sinusitis
J01.3
Primary diagnosis candidate
Acute sphenoidal sinusitis
J01.4
Primary diagnosis candidate
Acute pansinusitis
J01.8
Primary diagnosis candidate
Other acute sinusitis
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.
