VITiếng Việt
ICD-10 Vietnam

O24.3Pre-existing diabetes mellitus, 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 XV
Pregnancy, childbirth and the puerperium
Group O20-O29
Other maternal disorders predominantly related to pregnancy
Official Vietnamese name
Đái tháo đường trong thai kỳ: Đái tháo đường mắc từ trước khi mang thai, không xác định

Related O24 codes

O24 Diabetes mellitus in pregnancy O24.0 Primary diagnosis candidate Pre-existing type 1 diabetes mellitus O24.1 Primary diagnosis candidate Pre-existing type 2 diabetes mellitus O24.2 Primary diagnosis candidate Pre-existing malnutrition- related diabetes mellitus O24.4 Primary diagnosis candidate Diabetes mellitus arising in pregnancy O24.9 Primary diagnosis candidate Diabetes mellitus in pregnancy, 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.