Skip to content
HCC Buddy home

N11.9

Billable

Chronic tubulo-interstitial nephritis, unspecified

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

What This Code Means

A long-term inflammation of the kidney's tubules and connective tissue where the specific cause or type is not specified.

Coding Tips

  • •This is a non-specific code; query the provider for more detailed documentation when possible
  • •Use only when the chronic nature is confirmed but the specific etiology cannot be determined

Code Hierarchy

└N11Chronic tubulo-interstitial nephritis└N11.9Chronic tubulo-interstitial nephritis, unspecified
└N11.9Chronic tubulo-interstitial nephritis, unspecified

Open N11.9 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial