VITiếng Việt
ICD-10 Vietnam

J11Influenza, virus not identified

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 J11 directly

Use the most specific code supported by the record.

Chapter X
Diseases of the respiratory system
Group J09-J18
Influenza and pneumonia
Official Vietnamese name
Cúm, không xác định được virus
Additional WHO coding guidance
Incl.: influenza specific virus not stated to have been identified viral influenza specific virus not stated to have been identified Excl.: Haemophilus influenzae [H. influenzae]: infection NOS (A49.2) meningitis (G00.0) pneumonia (J14)

Related J11 codes

J11.0 Primary diagnosis candidate Influenza with pneumonia, virus not identified J11.1 Primary diagnosis candidate Influenza with other respiratory manifestations, virus not identified J11.8 Primary diagnosis candidate Influenza with other manifestations, virus not identified

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.