N11.1
Chronic obstructive pyelonephritis
Parent Code: N11
Inclusion Terms
- • 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
Cannot Code Together
These codes cannot be used together with the current code, even if both conditions are present.
- • calculous pyelonephritis (N20.9)
- • obstructive uropathy (N13.-)