N16 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Renal tubulo-interstitial disorders in diseases classified elsewhere.
Inclusion term
Pyelonephritis
Tubulo-interstitial nephritis
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)
Type 1 excludes
Diphtheritic pyelonephritis and tubulo-interstitial nephritis (A36.84)
Pyelonephritis and tubulo-interstitial nephritis in candidiasis (B37.49)
Pyelonephritis and tubulo-interstitial nephritis in cystinosis (E72.04)
Pyelonephritis and tubulo-interstitial nephritis in salmonella infection (A02.25)
Pyelonephritis and tubulo-interstitial nephritis in sarcoidosis (D86.84)
Pyelonephritis and tubulo-interstitial nephritis in Sjogren syndrome (M35.04)
Pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus (M32.15)
Pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis (B58.83)
Renal tubular degeneration in diabetes (E08-E13 with .29)
Syphilitic pyelonephritis and tubulo-interstitial nephritis (A52.75)
Versions
2025
No changes
2024
Code changed
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 (E83.0)
- 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)
2023
No changes
2022
Code changed
Type 1 excludes
diphtheritic pyelonephritis and tubulo-interstitial nephritis (A36.84)pyelonephritis and tubulo-interstitial nephritis in candidiasis (B37.49)pyelonephritis and tubulo-interstitial nephritis in cystinosis (E72.04)pyelonephritis and tubulo-interstitial nephritis in salmonella infection (A02.25)pyelonephritis and tubulo-interstitial nephritis in sarcoidosis (D86.84)pyelonephritis and tubulo-interstitial nephritis in sicca syndrome [Sjogren's] (M35.04)pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus (M32.15)pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis (B58.83)renal tubular degeneration in diabetes (E08-E13 with .29)syphilitic pyelonephritis and tubulo-interstitial nephritis (A52.75)
- diphtheritic pyelonephritis and tubulo-interstitial nephritis (A36.84)
- pyelonephritis and tubulo-interstitial nephritis in candidiasis (B37.49)
- pyelonephritis and tubulo-interstitial nephritis in cystinosis (E72.04)
- pyelonephritis and tubulo-interstitial nephritis in salmonella infection (A02.25)
- pyelonephritis and tubulo-interstitial nephritis in sarcoidosis (D86.84)
- pyelonephritis and tubulo-interstitial nephritis in Sjogren syndrome (M35.04)
- pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus (M32.15)
- pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis (B58.83)
- renal tubular degeneration in diabetes (E08-E13 with .29)
- syphilitic pyelonephritis and tubulo-interstitial nephritis (A52.75)
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code