N22*Calculus of urinary tract in diseases classified elsewhere
Code usage status
Primary diagnosis
Must not be used as the primary diagnosis
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use N22* directly
Use the most specific code supported by the record.
- Chapter XIV
- Diseases of the genitourinary system
- Group N20-N23
- Urolithiasis
- Official Vietnamese name
- Sỏi đường tiết niệu do bệnh phân loại mục khác
Related N22 codes
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.
