U.S. ICD-10-CM · FY 2027

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

N26

Unspecified contracted kidney

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where N26 sits

  1. 1

    Chapter 14

    Diseases of the genitourinary system (N00-N99)

  2. 2

    Section

    Other disorders of kidney and ureter (N25-N29)

  3. 3

    Category N26

    Unspecified contracted kidney

  4. 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

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

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 source

Code-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.

Ready to transform your clinical documentation?

Join Vero and see how effortless documentation can be.

  • No credit card required

  • Cancel anytime