N18.9

ICD-10Billable

Chronic kidney disease, unspecified

Official ICD-10-CM descriptor (FY2026)

Chronic kidney disease, unspecified

N18.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Chronic renal disease
Chronic renal failure NOS
Chronic renal insufficiency
Chronic uremia NOS
Diffuse sclerosing glomerulonephritis NOS

Related codes in N18

Where this code sits

Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: Acute kidney failure and chronic kidney disease (N17-N19)
Parent code: N18

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.