Other disorders of kidney and ureter, not elsewhere classified (N28) ICD-10-CM
The N28 code range covers other disorders of kidney and ureter, not elsewhere classified with 12 ICD-10-CM diagnosis codes. 10 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 N28 Range 12 codes · 10 billable
- N28 Other disorders of kidney and ureter, not elsewhere classifiedNon-billable
- N28.0 Ischemia and infarction of kidney
- N28.1 Cyst of kidney, acquired
- N28.8 Other specified disorders of kidney and ureterNon-billable
- N28.81 Hypertrophy of kidney
- N28.82 Megaloureter
- N28.83 Nephroptosis
- N28.84 Pyelitis cystica
- N28.85 Pyeloureteritis cystica
- N28.86 Ureteritis cystica
- N28.89 Other specified disorders of kidney and ureter
- N28.9 Disorder of kidney and ureter, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N28 range.
Kidney Cyst
Abnormal fluid filled sac within the kidney, either acquired or congenital.
Ureteritis Cystica
A non-neoplastic lesion of the ureter characterized by the presence of multiple submucosal small cysts in the ureteral wall. It is caused by inflammation due to urinary tract stones or infection.
Ureterocele
A cystic dilatation of the end of a URETER as it enters into the URINARY BLADDER. It is characterized by the ballooning of the ureteral orifice into the lumen of the bladder and may obstruct urine flow.
About the N28 Code Range
Problems with blood flow to the kidney, acquired kidney cysts, and other kidney or ureter disorders appear together here.
N28.0 identifies reduced kidney blood flow or tissue death. N28.1 identifies acquired kidney cysts. N28.8 groups other specified disorders, with subdivisions for kidney enlargement, an enlarged ureter, kidney displacement, and named cystic conditions. N28.89 retains other specified disorders, while N28.9 identifies an unspecified kidney or ureter disorder.
Questions About This Page
How many billable codes are in the N28 range?
Of the 12 codes in this range, 10 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 N28 range classify?
The range classifies other disorders of kidney and ureter, not elsewhere classified. 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.
