N26 ICD-10-CM Code: Unspecified contracted kidney
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
N26Unspecified contracted kidney
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where N26 sits
- 1
Chapter 14
Diseases of the genitourinary system (N00-N99)
- 2
Section
Other disorders of kidney and ureter (N25-N29)
- 3
Category N26
Unspecified contracted kidney
- 4
Code N26
Unspecified contracted kidney
More specific choices
Codes under N26
N26 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for N26.
Code first
No “code first” instruction is listed for N26.
Use additional code
No “use additional code” instruction is listed for N26.
Excludes1
Conditions that should not be reported together with this code.
- contracted kidney due to hypertension (I12.-)
- diffuse sclerosing glomerulonephritis (N05.8.-)
- hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
- small kidney of unknown cause (N27.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for N26.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code N26 mean?
N26 is the FY 2027 U.S. ICD-10-CM code for “Unspecified contracted kidney.”
Is N26 a billable or specific ICD-10-CM code?
No. N26 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is N26 located in ICD-10-CM?
N26 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Other disorders of kidney and ureter (N25-N29) (N25–N29), under category N26, Unspecified contracted kidney.
What coding notes are listed for N26?
No inclusion terms are listed for N26 in this reference record. No code-first instruction is listed. Excludes1 notes: contracted kidney due to hypertension (I12.-); diffuse sclerosing glomerulonephritis (N05.8.-); hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-); small kidney of unknown cause (N27.-). No Excludes2 note is listed.
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