ICD-10-CM Diagnosis Code (2025)
Official Description for N16
Renal tubulo-interstitial disorders in diseases classified elsewhere
Coding Notes & Guidelines for N16
- 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)
- 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)
- Pyelonephritis
- Tubulo-interstitial nephritis
About ICD-10-CM Code N16 (Renal tubulo-interstitial disorders in diseases classified elsewhere)
ICD-10-CM code N16 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N16 became effective on October 1, 2024.
This page provides detailed information about N16 - Renal tubulo-interstitial disorders in diseases classified elsewhere. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Renal tubulo-interstitial disorders in diseases classified elsewhere.