N13Obstructive and reflux uropathy
Code usage status
Primary diagnosis
Select a more specific code
Apply only when it matches the confirmed diagnosis and the documented clinical record.
Specificity
Do not use N13 directly
Use the most specific code supported by the record.
- Chapter XIV
- Diseases of the genitourinary system
- Group N10-N16
- Renal tubulo- interstitial diseases
- Official Vietnamese name
- Bệnh lý tiết niệu do tắc nghẽn và/hoặc trào ngược
- Additional WHO coding guidance
- Excl.: calculus of kidney and ureter without hydronephrosis (N20.-) congenital obstructive defects of renal pelvis and ureter (Q62.0-Q62.3) obstructive pyelonephritis (N11.1)
Related N13 codes
N13.0
Primary diagnosis candidate
Hydronephrosis with ureteropelvic junction obstruction
N13.1
Primary diagnosis candidate
Hydronephrosis with ureteral stricture, not elsewhere classified
N13.2
Primary diagnosis candidate
Hydronephrosis with renal and ureteral calculous obstruction
N13.3
Primary diagnosis candidate
Other and unspecified hydronephrosis
N13.4
Primary diagnosis candidate
Hydroureter
N13.5
Primary diagnosis candidate
Kinking and stricture of ureter without hydronephrosis
N13.6
Primary diagnosis candidate
Pyonephrosis
N13.7
Primary diagnosis candidate
Vesicoureteral- reflux-associated uropathy
N13.8
Primary diagnosis candidate
Other obstructive and reflux uropathy
N13.9
Primary diagnosis candidate
Obstructive and reflux uropathy, 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.
