Other renal tubulo-interstitial diseases (N15) ICD-10-CM
The N15 code range covers other renal tubulo-interstitial diseases with 5 ICD-10-CM diagnosis codes. 4 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the N15 Range 5 codes · 4 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N15 range.
Balkan Nephropathy
A form of chronic interstitial nephritis that is endemic to limited areas of BULGARIA, the former YUGOSLAVIA, and ROMANIA. It is characterized by a progressive shrinking of the KIDNEYS that is often associated with uroepithelial tumors.
Kidney
Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.
Perinephritis
Inflammation of the connective and adipose tissues surrounding the KIDNEY.
About the N15 Code Range
ICD-10 code section N15 covers a group of diseases affecting the renal tubules and surrounding interstitial tissue within the kidneys. These codes are specifically used for conditions beyond common kidney inflammations, focusing on diverse and sometimes rare kidney disorders.
The ICD-10 code for Balkan nephropathy (N15.0) identifies a regional kidney disease known for causing chronic tubulointerstitial damage. Code N15.1 is assigned to renal and perinephric abscesses, which are collections of pus in or around the kidney, including related conditions known as retroperitoneal or perirenal abscesses. N15.8 covers other specified tubulo-interstitial diseases such as fungal infections of the kidney or Armanni-Ebstein kidney. When the kidney disease is tubulointerstitial but not well defined, code N15.9 is used, including conditions like BK virus nephropathy after renal transplant or hereditary tubulointerstitial disorders. These codes help healthcare providers and coders accurately capture less common renal diseases beyond typical nephritis or nephrosis.
Questions About This Page
How many billable codes are in the N15 range?
Of the 5 codes in this range, 4 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the N15 range classify?
The range classifies other renal tubulo-interstitial diseases. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
