N18.9Billable
Chronic kidney disease, unspecified
- Chapter
- 14. Diseases of the genitourinary system
- Category
- N18
- Effective date
- October 1, 2026
Related codes in category N18
N18Chronic kidney disease (CKD)N18.1Chronic kidney disease, stage 1YesN18.2Chronic kidney disease, stage 2 (mild)YesN18.3Chronic kidney disease, stage 3 (moderate)N18.30Chronic kidney disease, stage 3 unspecifiedYesN18.31Chronic kidney disease, stage 3aYesN18.32Chronic kidney disease, stage 3bYesN18.4Chronic kidney disease, stage 4 (severe)YesN18.5Chronic kidney disease, stage 5YesN18.6End stage renal diseaseYes
Frequently asked questions
What is ICD-10 code N18.9?
N18.9 is an ICD-10-CM diagnosis code for Chronic kidney disease, unspecified.
Is N18.9 a billable code?
Yes. N18.9 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is N18.9 in?
N18.9 falls under Chapter 14: Diseases of the genitourinary system.
When did N18.9 become effective?
N18.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to N18.9?
N18.9 belongs to category N18, which includes 10 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.