N16 — Renal tubulo-interstitial disorders in diseases classified elsewhere
Part of Chapter 14: Diseases of the genitourinary system , block Renal tubulo-interstitial diseases (N10-N16) .
Official Notes
Inclusion Terms
Pyelonephritis
Inclusion Terms
Tubulo-interstitial nephritis
Code First
underlying disease, such as:
Code First
brucellosis (A23.0-A23.9)
Code First
cryoglobulinemia ( D89.1 )
Code First
glycogen storage disease ( E74.0- )
Code First
leukemia (C91-C95)
Code First
lymphoma (C81.0-C85.9, C96.0-C96.9)
Code First
multiple myeloma ( C90.0- )
Code First
sepsis (A40.0-A41.9)
Code First
Wilson's disease ( E83.01 )
Excludes1
diphtheritic pyelonephritis and tubulo-interstitial nephritis ( A36.84 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in candidiasis ( B37.49 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in cystinosis ( E72.04 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in salmonella infection ( A02.25 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in sarcoidosis ( D86.84 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in Sjogren syndrome ( M35.04 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus ( M32.15 )
Excludes1
pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis ( B58.83 )
Excludes1
renal tubular degeneration in diabetes (E08-E13 with .29)
Excludes1
syphilitic pyelonephritis and tubulo-interstitial nephritis ( A52.75 )
Child Codes
N16 has no child codes in the FY 2027 release -- it is used on its own.
Referenced By
Official notes on these codes cite N16.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS