Disorders resulting from impaired renal tubular function (N25) ICD-10-CM
The N25 code range covers disorders resulting from impaired renal tubular function with 7 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the N25 Range 7 codes · 5 billable
- N25 Disorders resulting from impaired renal tubular functionNon-billable
- N25.0 Renal osteodystrophy
- N25.1 Nephrogenic diabetes insipidus
- N25.8 Other disorders resulting from impaired renal tubular functionNon-billable
- N25.81 Secondary hyperparathyroidism of renal origin
- N25.89 Other disorders resulting from impaired renal tubular function
- N25.9 Disorder resulting from impaired renal tubular function, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N25 range.
Diabetes Insipidus, Nephrogenic
A genetic or acquired polyuric disorder characterized by persistent hypotonic urine and HYPOKALEMIA. This condition is due to renal tubular insensitivity to VASOPRESSIN and failure to reduce urine volume. It may be the result of mutations of genes encoding VASOPRESSIN RECEPTORS or AQUAPORIN-2; KIDNEY DISEASES; adverse drug effects; or complications from PREGNANCY.
Renal Osteodystrophy
Abnormalities of bone mineral metabolism associated with chronic kidney disease.
About the N25 Code Range
These disorders result from impaired function of the kidney tubules.
The subdivisions distinguish a kidney-related bone disorder (N25.0) and nephrogenic diabetes insipidus (N25.1) from other or unspecified disorders. The other-disorders branch, N25.8, separates secondary hyperparathyroidism of renal origin (N25.81) from other disorders (N25.89). N25.9 identifies an unspecified disorder resulting from impaired kidney tubule function.
Questions About This Page
How many billable codes are in the N25 range?
Of the 7 codes in this range, 5 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the N25 range classify?
The range classifies disorders resulting from impaired renal tubular function. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
