VITiếng Việt
ICD-10 Vietnam

Q31Congenital malformations of larynx

Code usage status

Primary diagnosis

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Apply only when it matches the confirmed diagnosis and the documented clinical record.

Specificity

Do not use Q31 directly

Use the most specific code supported by the record.

Chapter XVII
Congenital malformations, deformations and chromosomal abnormalities
Group Q30-Q34
Congenital malformations of the respiratory system
Official Vietnamese name
Dị tật bẩm sinh của thanh quản
Additional WHO coding guidance
Excl.: congenital (laryngeal) stridor NOS (P28.8)

Related Q31 codes

Q31.0 Primary diagnosis candidate Web of larynx Q31.1 Primary diagnosis candidate Congenital subglottic stenosis Q31.2 Primary diagnosis candidate Laryngeal hypoplasia Q31.3 Primary diagnosis candidate Laryngocele Q31.5 Primary diagnosis candidate Congenital laryngomalacia Q31.8 Primary diagnosis candidate Other congenital malformations of larynx Q31.9 Primary diagnosis candidate Congenital malformation of larynx, unspecified

Clinical record checklist

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  • 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.