ICD-10 CM Code N11.1
N11.1
Chronic obstructive pyelonephritis
Includes
- chronic infectious interstitial nephritis
- chronic pyelitis
- chronic pyelonephritis
Inclusion Term
- 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
Excludes Type 1
- calculous pyelonephritis (N20.9)
- obstructive uropathy (N13.-)
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