Acute kidney failure and chronic kidney disease (N17-N19)
chapter 14: Diseases of the Genitourinary System
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Instructional notes
Excludes2: not included here, code separately if applicable
- congenital renal failure (P96.0)
- drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)
- extrarenal uremia (R39.2)
- hemolytic-uremic syndrome (D59.3-)
- hepatorenal syndrome (K76.7)
- postpartum hepatorenal syndrome (O90.41)
- posttraumatic renal failure (T79.5)
- prerenal uremia (R39.2)
- renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)
- renal failure following labor and delivery (O90.41)
- renal failure postprocedural (N99.0)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers chronic kidney disease staging, CKD in kidney transplant patients, and sequencing CKD with related conditions such as diabetes and hypertension.
- Chronic kidney disease (page 62)
All codes under N17-N19
N17-N19 can't be used on a claim. Pick a billable code below; grey headings group them.
- N17Acute kidney failure
- N17.0Acute kidney failure with tubular necrosis
- N17.1Acute kidney failure with acute cortical necrosis
- N17.2Acute kidney failure with medullary necrosis
- N17.8Other acute kidney failure
- N17.9Acute kidney failure, unspecified
- N18Chronic kidney disease (CKD)
- N18.1Chronic kidney disease, stage 1
- N18.2Chronic kidney disease, stage 2 (mild)
- N18.3Chronic kidney disease, stage 3 (moderate)
- N18.30Chronic kidney disease, stage 3 unspecified
- N18.31Chronic kidney disease, stage 3a
- N18.32Chronic kidney disease, stage 3b
- N18.4Chronic kidney disease, stage 4 (severe)
- N18.5Chronic kidney disease, stage 5
- N18.6End stage renal disease
- N18.9Chronic kidney disease, unspecified
- N19Unspecified kidney failure
N17-N19 MS-DRGs
This code does not group to an MS-DRG as a principal diagnosis.
Other codes that refer to N17-N19
Notes on these codes point to N17-N19.
- N00-N08 Code Also: any associated kidney failure (N17-N19).
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Kidney Failure
Healthy kidneys clean your blood by removing excess fluid, minerals, and wastes. They also make hormones that keep your bones strong and your blood healthy. But if the kidneys are damaged, they don't work properly. Harmful wastes can build up in your body. Your blood pressure may rise. Your body may retain excess fluid and not make enough red blood cells. This is called kidney failure.
Read more about kidney failure on MedlinePlus