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N11.1 Chronic obstructive pyelonephritis
BackN11Chronic tubulo-interstitial nephritisCategory4 →N11.0Nonobstructive reflux-associated chronic pyelonephritisCategoryN11.1Chronic obstructive pyelonephritisCategoryN11.8Other chronic tubulo-interstitial nephritisCategoryN11.9Chronic tubulo-interstitial nephritis, unspecifiedCategory
CategoryCODABLE
N11.1
Chronic obstructive pyelonephritis
EXAMPLES
Pyelonephritis (chronic) associated with anomaly of pelviureteric junction
Pyelonephritis (chronic) associated with anomaly of pyeloureteric junction
Pyelonephritis (chronic) associated with crossing of vessel
Pyelonephritis (chronic) associated with kinking of ureter
Pyelonephritis (chronic) associated with obstruction of ureter
Pyelonephritis (chronic) associated with stricture of pelviureteric junction
Pyelonephritis (chronic) associated with stricture of ureter
Pyelonephritis (chronic) associated with anomaly of pyeloureteric junction
Pyelonephritis (chronic) associated with crossing of vessel
Pyelonephritis (chronic) associated with kinking of ureter
Pyelonephritis (chronic) associated with obstruction of ureter
Pyelonephritis (chronic) associated with stricture of pelviureteric junction
Pyelonephritis (chronic) associated with stricture of ureter
EXCLUDES
Excludes1: calculous pyelonephritis (N20.9)
obstructive uropathy (N13.-)
obstructive uropathy (N13.-)
- Chapter
- XIV · Diseases of the genitourinary system
- Section
- N10-N16
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.