ICD-10-CM N18: Chronic kidney disease (CKD)

ICD-10-CM Diagnosis Code (2025)

Official Description for N18

Chronic kidney disease (CKD)

Coding Notes & Guidelines for N18

Excludes1: Not Coded Here

chronic kidney disease, stage 5 requiring chronic dialysis (N18.6)

Code First
  • any associated:
  • diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22)
  • hypertensive chronic kidney disease (I12.-, I13.-)
Use Additional Code

code to identify kidney transplant status, if applicable, (Z94.0)

Use Additional Code

code to identify dialysis status (Z99.2)

Inclusion Terms

Chronic kidney disease requiring chronic dialysis

Inclusion Terms
  • Chronic renal disease
  • Chronic renal failure NOS
  • Chronic renal insufficiency
  • Chronic uremia NOS
  • Diffuse sclerosing glomerulonephritis NOS

Child Codes (More Specific Codes for N18):

N18.1 - Chronic kidney disease, stage 1 N18.2 - Chronic kidney disease, stage 2 (mild) N18.3 - Chronic kidney disease, stage 3 (moderate) N18.30 - Chronic kidney disease, stage 3 unspecified N18.31 - Chronic kidney disease, stage 3a N18.32 - Chronic kidney disease, stage 3b N18.4 - Chronic kidney disease, stage 4 (severe) N18.5 - Chronic kidney disease, stage 5 N18.6 - End stage renal disease N18.9 - Chronic kidney disease, unspecified

About ICD-10-CM Code N18 (Chronic kidney disease)

ICD-10-CM code N18 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N18 became effective on October 1, 2024.

This page provides detailed information about N18 - Chronic kidney disease (CKD). It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Chronic kidney disease.