N26
⚠ Non-billable
Unspecified contracted kidney
ICD-10-CM · FY2026 · Diseases of the Genitourinary System
Code
N26
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Genitourinary System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- contracted kidney due to hypertension (I12.-)
- diffuse sclerosing glomerulonephritis (N05.8.-)
- hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
- small kidney of unknown cause (N27.-)
Frequently asked questions
What is ICD-10 code N26?
ICD-10-CM code N26 represents Unspecified contracted kidney. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Genitourinary System chapter, effective October 1, 2025 – September 30, 2026.
Is N26 billable?
No. N26 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is N26 in?
N26 belongs to the Diseases of the Genitourinary System chapter (N00–N99) of ICD-10-CM.
Related codes in the N26 category
Search all 98,186 ICD-10-CM codes instantly
Search ICDwise →