2026 ICD-10-CM Diagnosis Code N26Unspecified contracted kidney
N26 is a non-billable ICD-10-CM category code for unspecified contracted kidney, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N26.1, N26.2, and N26.9.
Code Identity
Code Classification
Specific Coding for Unspecified contracted kidneyOverview
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- contracted kidney due to hypertension I12
- diffuse sclerosing glomerulonephritis N05.8
- hypertensive nephrosclerosis arteriolar arteriosclerotic I12
- small kidney of unknown cause N27
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Patient EducationClinical
Kidney Diseases
You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About N26Overview
Is N26 (Unspecified contracted kidney) a billable code?
No. This is a category header that groups the codes for unspecified contracted kidney, and headers cannot be submitted on claims. Claims for unspecified contracted kidney need a more specific code from this category, such as N26.1, N26.2, and N26.9.
