N28.9 – Disorder of kidney and ureter, unspecified

ICD-10-CM 2027 diagnosis code · Other disorders of kidney and ureter

Billable code

ICD-10-CM code N28.9
Code
N28.9 (claims format: N289)
Description
Disorder of kidney and ureter, unspecified
Billable
Yes – valid for HIPAA-covered transactions
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
Parent codes
N28

Notes for N28.9

Applicable to:
  • Nephropathy NOS
  • Renal disease (acute) NOS
  • Renal insufficiency (acute)
Excludes1 (not coded here):
  • chronic renal insufficiency (N18.9)
  • unspecified nephritic syndrome (N05.-)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block N25-N29

Excludes2 (not included here):
  • disorders of kidney and ureter with urolithiasis (N20-N23)

Index terms for N28.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in N28

Frequently asked questions

What is ICD-10 code N28.9?

N28.9 is the ICD-10-CM code for disorder of kidney and ureter, unspecified, in the block N25-N29 (Other disorders of kidney and ureter).

Is N28.9 a billable code?

Yes. N28.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does N28.9 belong to?

It belongs to category N28 – Other disorders of kidney and ureter, not elsewhere classified.

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.