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E09-E13 with .21)
- gonococcal (A54.21)
- Goodpasture's syndrome (M31.0)
- hemolytic-uremic syndrome (D59.3)
- lupus (M32.14)
- mumps (B26.83)
- syphilis (A52.75)
- systemic lupus erythematosus (M32.14)
- Wegener's granulomatosis (M31.31)
- pyelonephritis in diseases classified elsewhere (N16)
- renal tubulo-interstitial disorders classified elsewhere (N16)
Renal tubulo-interstitial diseases (N10-N16)
- Includes: pyelonephritis
- Excludes1: pyeloureteritis cystica (N28.85)
N10 Acute tubulo-interstitial nephritis
- Includes: acute infectious interstitial nephritis
- acute pyelitis
- acute pyelonephritis
- acute tubular necrosis
- hemoglobin nephrosis
- myoglobin nephrosis
- Use additional code (B95-B97), to identify infectious agent.
N11 Chronic tubulo-interstitial nephritis
- Includes: chronic infectious interstitial nephritis
- chronic pyelitis
- chronic pyelonephritis
- Use additional code (B95-B97), to identify infectious agent.
- N11.0 Nonobstructive reflux-associated chronic pyelonephritis
- Pyelonephritis (chronic) associated with (vesicoureteral) reflux
- Excludes1: vesicoureteral reflux NOS (N13.70)
- N11.1 Chronic obstructive pyelonephritis
- 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
- Excludes1: calculous pyelonephritis (N20.9)
- obstructive uropathy (N13.-)
- N11.8 Other chronic tubulo-interstitial nephritis
- Nonobstructive chronic pyelonephritis NOS
- N11.9 Chronic tubulo-interstitial nephritis, unspecified
- Chronic
