Stages

Description

GFR (mL/min/1.73m²)

1

CKD with normal renal function

>90

2

CKD with mild renal failure

60 - 89

3A

Mild to moderate renal failure

45 - 59

3B

Moderate to severe renal failure

30 - 44

4

Severe renal failure

15 - 29

5

End-stage renal failure

<15