Acute kidney failure and chronic kidney disease
18 codes in this section
About Section N17-N19
Section N17-N19 (N17-N19) covers acute kidney failure and chronic kidney disease. It sits within the Diseases of the genitourinary system chapter (N00-N99). This section contains 18 ICD-10-CM codes, 15 billable diagnoses you can submit on a claim, and 3 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in N17-N19
Grouped by 3-character root code. Click any code for full detail.
| N17.0 | Acute kidney failure with tubular necrosis | Billable |
| N17.1 | Acute kidney failure with acute cortical necrosis | Billable |
| N17.2 | Acute kidney failure with medullary necrosis | Billable |
| N17.8 | Other acute kidney failure | Billable |
| N17.9 | Acute kidney failure, unspecified | Billable |
| N18.1 | Chronic kidney disease, stage 1 | Billable |
| N18.2 | Chronic kidney disease, stage 2 (mild) | Billable |
| N18.3 | Chronic kidney disease, stage 3 (moderate) | Header |
| N18.30 | Chronic kidney disease, stage 3 unspecified | Billable |
| N18.31 | Chronic kidney disease, stage 3a | Billable |
| N18.32 | Chronic kidney disease, stage 3b | Billable |
| N18.4 | Chronic kidney disease, stage 4 (severe) | Billable |
| N18.5 | Chronic kidney disease, stage 5 | Billable |
| N18.6 | End stage renal disease | Billable |
| N18.9 | Chronic kidney disease, unspecified | Billable |
Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team