T70.2Other and unspecified effects of high altitude
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
- Tác động khác và/hoặc không xác định của độ cao
- Additional WHO coding guidance
- Alpine sickness Anoxia due to high altitude Barotrauma NOS Hypobaropathy Mountain sickness Excl.: polycythaemia due to high altitude (D75.1)
Related T70 codes
T70
Effects of air pressure and water pressure
T70.0
Primary diagnosis candidate
Otitic barotrauma
T70.1
Primary diagnosis candidate
Sinus barotrauma
T70.3
Primary diagnosis candidate
Caisson disease [decompression sickness]
T70.4
Primary diagnosis candidate
Effects of high- pressure fluids
T70.8
Primary diagnosis candidate
Other effects of air pressure and water pressure
T70.9
Primary diagnosis candidate
Effect of air pressure and water pressure, unspecified
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.
