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N11.0

Billable

Nonobstructive reflux-associated chronic pyelonephritis

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A long-term kidney infection caused by urine backing up into the kidney due to abnormal valve function in the ureter, without physical obstruction.

Coding Tips

  • •Document evidence of vesicoureteral reflux (VUR) in the medical record
  • •Confirm the chronic nature with documentation of recurrent or persistent infections over time

Excludes 1 — Do NOT code together

  • vesicoureteral reflux NOS (N13.70)

Code Hierarchy

└N11Chronic tubulo-interstitial nephritis└N11.0Nonobstructive reflux-associated chronic pyelonephritis
└N11.0Nonobstructive reflux-associated chronic pyelonephritis

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