B66.9Fluke infection, 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.
- Group B65-B83
- Helminthiases
- Official Vietnamese name
- Bệnh nhiễm sán lá, không xác định
Related B66 codes
B66
Other fluke infections
B66.0
Primary diagnosis candidate
Opisthorchiasis
B66.1
Primary diagnosis candidate
Clonorchiasis
B66.2
Primary diagnosis candidate
Dicrocoeliasis
B66.3
Primary diagnosis candidate
Fascioliasis
B66.4
Primary diagnosis candidate
Paragonimiasis
B66.5
Primary diagnosis candidate
Fasciolopsiasis
B66.8
Primary diagnosis candidate
Other specified fluke infections
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.
