Chronic Kidney Disease ICD-10-CM codes
ICD-10-CM codes for chronic kidney disease (CKD) stages 1 through 5 and end stage renal disease (ESRD).
11 codes, 9 billable. FY2027, valid from October 1, 2026. In chapter 14: Diseases of the Genitourinary System.
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How to code Chronic Kidney Disease
Category N18 is staged: N18.1 through N18.5 for stages 1 to 5, with stage 3 subdivided into N18.30 (unspecified), N18.31 (stage 3a), and N18.32 (stage 3b). N18.6 is end stage renal disease, and N18.9 is unspecified CKD.
Assign N18.6 only when the provider documents ESRD. If a patient has ESRD and is on dialysis, add Z99.2 (dependence on renal dialysis). When both a stage and ESRD are documented, code only N18.6.
CKD frequently appears in combination coding: diabetic CKD uses a diabetes combination code (such as E11.22) followed by the N18 stage, and hypertensive CKD is coded with I12 or I13 first, then the N18 stage.
All Chronic Kidney Disease codes
- 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
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