T71Asphyxiation
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 T66-T78
- Other and unspecified effects of external causes
- Official Vietnamese name
- Ngạt thở do chấn thương
- Additional WHO coding guidance
- Incl.: Suffocation (by strangulation) Systemic oxygen deficiency due to: low oxygen content in ambient air mechanical threat to breathing Excl.: anoxia due to high altitude (T70.2) asphyxia from: carbon monoxide (T58) inhalation of food or foreign body (T17.-) other gases, fumes and vapours (T59.-) respiratory distress:
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.
