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N13.6 Pyonephrosis
BackN13Obstructive and reflux uropathyCategory10 →N13.0Hydronephrosis with ureteropelvic junction obstructionCategoryN13.1Hydronephrosis with ureteral stricture, not elsewhere classifiedCategoryN13.2Hydronephrosis with renal and ureteral calculous obstructionCategoryN13.3Other and unspecified hydronephrosisCategory2 →N13.30Unspecified hydronephrosisCategoryN13.39Other hydronephrosisCategoryN13.4HydroureterCategoryN13.5Crossing vessel and stricture of ureter without hydronephrosisCategoryN13.6PyonephrosisCategoryN13.7Vesicoureteral-refluxCategory4 →N13.70Vesicoureteral-reflux, unspecifiedCategoryN13.71Vesicoureteral-reflux without reflux nephropathyCategoryN13.72Vesicoureteral-reflux with reflux nephropathy without hydroureterCategory3 →N13.721Vesicoureteral-reflux with reflux nephropathy without hydroureter, unilateralCategoryN13.722Vesicoureteral-reflux with reflux nephropathy without hydroureter, bilateralCategoryN13.729Vesicoureteral-reflux with reflux nephropathy without hydroureter, unspecifiedCategoryN13.73Vesicoureteral-reflux with reflux nephropathy with hydroureterCategory3 →N13.731Vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateralCategoryN13.732Vesicoureteral-reflux with reflux nephropathy with hydroureter, bilateralCategoryN13.739Vesicoureteral-reflux with reflux nephropathy with hydroureter, unspecifiedCategoryN13.8Other obstructive and reflux uropathyCategoryN13.9Obstructive and reflux uropathy, unspecifiedCategory
CategoryCODABLE
N13.6
Pyonephrosis
EXAMPLES
Conditions in N13.0-N13.5 with infection
Obstructive uropathy with infection
Obstructive uropathy with infection
CODING RULE
Use additional code: code (B95-B97), to identify infectious agent.
- Chapter
- XIV · Diseases of the genitourinary system
- Section
- N10-N16
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.