VITiếng Việt
ICD-10 Vietnam

Q99Other chromosome abnormalities, not elsewhere classified

Code usage status

Primary diagnosis

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Specificity

Do not use Q99 directly

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Chapter XVII
Congenital malformations, deformations and chromosomal abnormalities
Group Q90-Q99
Chromosomal abnormalities, not elsewhere classified
Official Vietnamese name
Bất thường nhiễm sắc thể khác không phân loại mục khác

Related Q99 codes

Q99.0 Primary diagnosis candidate Chimera 46,XX/46,XY Q99.1 Primary diagnosis candidate 46,XX true hermaphrodite Q99.2 Primary diagnosis candidate Fragile X chromosome Q99.8 Primary diagnosis candidate Other specified chromosome abnormalities Q99.9 Primary diagnosis candidate Chromosomal abnormality, 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.