Q84.4Congenital leukonychia
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 Q80-Q89
- Other congenital malformations
- Official Vietnamese name
- Móng đốm trắng bẩm sinh
Related Q84 codes
Q84
Other congenital malformations of integument
Q84.0
Primary diagnosis candidate
Congenital alopecia Congenital atrichosis
Q84.1
Primary diagnosis candidate
Congenital morphological disturbances of hair, not elsewhere classified
Q84.2
Primary diagnosis candidate
Other congenital malformations of hair
Q84.3
Primary diagnosis candidate
Anonychia
Q84.5
Primary diagnosis candidate
Enlarged and hypertrophic nails
Q84.6
Primary diagnosis candidate
Other congenital malformations of nails
Q84.8
Primary diagnosis candidate
Other specified congenital malformations of integument
Q84.9
Primary diagnosis candidate
Congenital malformation of integument, 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.
