Other disorders of kidney and ureter in diseases classified elsewhere (N29) ICD-10-CM
The N29 code range covers other disorders of kidney and ureter in diseases classified elsewhere with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the N29 Range 1 codes · 1 billable
- N29 Other disorders of kidney and ureter in diseases classified elsewhere
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N29 range.
Nephrocalcinosis
A condition characterized by calcification of the renal tissue itself. It is usually seen in distal RENAL TUBULAR ACIDOSIS with calcium deposition in the DISTAL KIDNEY TUBULES and the surrounding interstitium. Nephrocalcinosis causes RENAL INSUFFICIENCY.
About the N29 Code Range
The ICD-10 code N29 is used to classify unusual kidney and ureter problems that occur as part of other diseases rather than primary kidney disorders. These codes cover a range of kidney and urinary tract issues linked to systemic conditions or infections.
N29 includes kidney and ureter disorders caused by diseases like systemic lupus erythematosus, scleroderma, or malignancies. It also covers conditions referred to by synonyms such as metabolic renal disease, enamel-renal syndrome, and nephrocalcinosis (microscopic, macroscopic, cortical, or medullary). Additionally, ICD-10 N29 addresses renal problems linked to infections like genitourinary tract schistosomiasis or urinary schistosomiasis and their complications, including urethral strictures. Familial primary hypomagnesemia with hypercalciuria and nephrocalcinosis—sometimes associated with severe ocular involvement—is another key condition within this category. For healthcare coding professionals and others searching for the ICD-10 code for kidney disorders arising in systemic diseases, N29 helps specify these complex cases where kidney issues are secondary to other illnesses or infections.
Questions About This Page
How many billable codes are in the N29 range?
Of the 1 codes in this range, 1 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 N29 range classify?
The range classifies other disorders of kidney and ureter in diseases classified elsewhere. 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.
