VITiếng Việt
ICD-10 Vietnam

T54.9Corrosive substance, 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 XIX
Injury, poisoning and certain other consequences of external causes
Group T51-T65
Toxic effects of substances chiefly nonmedicinal as to source
Official Vietnamese name
Tác động độc hại của chất ăn mòn, không xác định

Related T54 codes

T54 Toxic effect of corrosive substances T54.0 Primary diagnosis candidate Phenol and phenol homologues T54.1 Primary diagnosis candidate Other corrosive organic compounds T54.2 Primary diagnosis candidate Corrosive acids and acid-like substances T54.3 Primary diagnosis candidate Corrosive alkalis and alkali-like substances

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.