N16
Renal tubulo-interstitial disorders in diseases classified elsewhere
Billable
Coding Guidelines
Inclusion Terms
- Pyelonephritis
- Tubulo-interstitial nephritis
Excludes1 (Mutually Exclusive)
These codes should never be used together with N16
- A36.84 - diphtheritic pyelonephritis and tubulo-interstitial nephritis (A36.84)
- B37.49 - pyelonephritis and tubulo-interstitial nephritis in candidiasis (B37.49)
- E72.04 - pyelonephritis and tubulo-interstitial nephritis in cystinosis (E72.04)
- A02.25 - pyelonephritis and tubulo-interstitial nephritis in salmonella infection (A02.25)
- D86.84 - pyelonephritis and tubulo-interstitial nephritis in sarcoidosis (D86.84)
- M35.04 - pyelonephritis and tubulo-interstitial nephritis in Sjogren syndrome (M35.04)
- M32.15 - pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus (M32.15)
- B58.83 - pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis (B58.83)
- renal tubular degeneration in diabetes (E08-E13 with .29)
- A52.75 - syphilitic pyelonephritis and tubulo-interstitial nephritis (A52.75)
Code First
- underlying disease, such as:
- brucellosis (A23.0-A23.9)
- cryoglobulinemia (D89.1)
- glycogen storage disease (E74.0-)
- leukemia (C91-C95)
- lymphoma (C81.0-C85.9, C96.0-C96.9)
- multiple myeloma (C90.0-)
- sepsis (A40.0-A41.9)
- Wilson's disease (E83.01)


