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N11 Chronic tubulo-interstitial nephritis

Non-Billable/Non-Specific

Includes

  • chronic infectious interstitial nephritis
  • chronic pyelitis
  • chronic pyelonephritis

Use Additional

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

Codes

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