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N11

Non-Billable (Header)

Chronic tubulo-interstitial nephritis

Includes

  • chronic infectious interstitial nephritis
  • chronic pyelitis
  • chronic pyelonephritis

Use Additional Code

  • code (B95-B97), to identify infectious agent.

Child Codes

N11.0Nonobstructive reflux-associated chronic pyelonephritis
N11.1Chronic obstructive pyelonephritis
N11.8Other chronic tubulo-interstitial nephritis
N11.9Chronic tubulo-interstitial nephritis, unspecified

Code Hierarchy

└N11Chronic tubulo-interstitial nephritis
└N11Chronic tubulo-interstitial nephritis

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