VITiếng Việt
ICD-10 Vietnam

N20Calculus of kidney and ureter

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 N20 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 thận và/hoặc niệu quản - Bao gồm: viêm
Additional WHO coding guidance
Incl.: calculous pyelonephritis Excl.: with hydronephrosis (N13.2)

Related N20 codes

N20.0 Primary diagnosis candidate Calculus of kidney N20.1 Primary diagnosis candidate Calculus of ureter N20.2 Primary diagnosis candidate Calculus of kidney with calculus of ureter N20.9 Primary diagnosis candidate Urinary calculus, 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.