N13 is the ICD-10 code for Obstructive and reflux uropathy. It is a three-character category divided into 10 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block N10–N16 (Renal tubulo-interstitial diseases) in Chapter XIV, Diseases of the genitourinary system.
- Code type
- Category (3 characters)
- Chapter
- XIV · N00–N99
- Classification
- WHO ICD-10, 2019 version
What N13 excludes
Conditions that look similar but belong under another code.
- calculus of kidney and ureter without hydronephrosis N20.-
- congenital obstructive defects of renal pelvis and ureter Q62.0-Q62.3
- obstructive pyelonephritis N11.1
Subcodes of N13
- N13.0Hydronephrosis with ureteropelvic junction obstruction
- N13.1Hydronephrosis with ureteral stricture, not elsewhere classified
- N13.2Hydronephrosis with renal and ureteral calculous obstruction
- N13.3Other and unspecified hydronephrosis
- N13.4Hydroureter
- N13.5Kinking and stricture of ureter without hydronephrosis
- N13.6Pyonephrosis
- N13.7Vesicoureteral-reflux-associated uropathy
- N13.8Other obstructive and reflux uropathy
- N13.9Obstructive and reflux uropathy, unspecified
N13 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DN13Urinvejslidelser ved afløbshindring og tilbageløb i urinvejene
N13Virtsateiden umpeutumiseen tai virtsan takaisinvirtaukseen perustuva sairaus
N13Obstruktive Uropathie und Refluxuropathie
N13Uropathie obstructive et par reflux
N13obstructieve uropathie en reflux-uropathie
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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