Other disorders of kidney and ureter (N25-N29) ICD-10-CM
The N25–N29 section covers other disorders of kidney and ureter with 28 ICD-10-CM diagnosis codes, of which 22 are billable in fiscal year 2027. The section is organized into the 5 code ranges listed below.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Code Ranges in This Section 5 ranges · 28 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the N25–N29 Code Range
These conditions affect the kidneys or ureters. They include problems linked to impaired kidney tubule function, contracted or small kidneys, and other kidney or ureter disorders.
N25 separates named disorders caused by impaired kidney tubule function from other or unspecified disorders. N26 groups contracted kidneys, with subdivisions for kidney shrinkage, Page kidney, and unspecified kidney hardening. N27 sorts small kidneys of unknown cause by whether one or both kidneys are affected, or that detail is unspecified.
N28 separates reduced blood flow or tissue death in the kidney, acquired kidney cysts, and other or unspecified kidney and ureter disorders. N29 identifies other kidney or ureter disorders in diseases classified elsewhere.
Questions About This Page
How many codes are in the N25-N29 range?
The N25-N29 range contains 28 ICD-10-CM diagnosis codes in FY 2027. 22 of them are billable, and the rest are category headers that organize the section.
What conditions does N25-N29 cover?
The range covers other disorders of kidney and ureter. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
