ICD-10-CM 2027
ICD-10 code for CKD stage 3
Confirmed by the official ICD-10-CM index entry “disease, diseased › kidney (functional) (pelvis) › chronic › stage 3 (moderate)”. Page updated September 29, 2026.
About coding CKD stage 3
The ICD-10-CM code for CKD stage 3 is N18.30 (Chronic kidney disease, stage 3 unspecified). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N18.30.
It is also searched as chronic kidney disease stage 3.
Within N18.3, choose N18.30 (3 unspecified) only when documentation doesn't support a more specific option: 3a (N18.31) and 3b (N18.32).
Code first any associated: diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22) and hypertensive chronic kidney disease (I12.-, I13.-).
Use an additional code, if applicable, to identify: associated cachexia (E88.A) and kidney transplant status (Z94.0).
Related CKD stage 3 codes
Common questions about CKD stage 3 ICD-10 codes
What is the ICD-10 code for CKD stage 3?
- N18.30 — Chronic kidney disease, stage 3 unspecified. More specific codes apply when the documentation supports them: N18.31, N18.32.
What is the ICD-10 code for chronic kidney disease, stage 3a?
- N18.31 — Chronic kidney disease, stage 3a.
What is the ICD-10 code for chronic kidney disease, stage 3b?
- N18.32 — Chronic kidney disease, stage 3b.
Is N18.30 billable?
- Yes. N18.30 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N18.30 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N18.30 as a principal diagnosis.
Is N18.30 a CC or MCC?
- No. N18.30 is neither a CC nor an MCC under MS-DRG v44.0.