N28 – Other disorders of kidney and ureter, not elsewhere classified
ICD-10-CM 2027 diagnosis code · Other disorders of kidney and ureter
ICD-10-CM code
N28
- Code
N28(claims format:N28)- Description
- Other disorders of kidney and ureter, not elsewhere classified
- Short description
- Oth disorders of kidney and ureter, not elsewhere classified
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 14. Diseases of the genitourinary system (N00-N99)
- Block
- N25-N29 Other disorders of kidney and ureter
Billable codes under N28
N28 is a header code and cannot be used on claims. Choose the most specific code:
- N28.0 – Ischemia and infarction of kidneyBillable
- N28.1 – Cyst of kidney, acquiredBillable
- N28.8 – Other specified disorders of kidney and ureterHeader (more codes below)
- N28.9 – Disorder of kidney and ureter, unspecifiedBillable
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block N25-N29
Frequently asked questions
What is ICD-10 code N28?
N28 is the ICD-10-CM code for other disorders of kidney and ureter, not elsewhere classified, in the block N25-N29 (Other disorders of kidney and ureter).
Is N28 a billable code?
No. N28 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.