N11Chronic tubulo-interstitial nephritis
ICD-10-CM category (non-billable header) code — part of Renal tubulo-interstitial diseases (N10-N16)
Coding Notes
Includes
- chronic infectious interstitial nephritis
- chronic pyelitis
- chronic pyelonephritis
Use Additional Code
- code (B95-B97), to identify infectious agent.
Subcategories (4)
- N11.0 Nonobstructive reflux-associated chronic pyelonephritis
- N11.1 Chronic obstructive pyelonephritis
- N11.8 Other chronic tubulo-interstitial nephritis
- N11.9 Chronic tubulo-interstitial nephritis, unspecified