GFR category GFR (ml/min/1.73m²)

Terms

G1

>90

Normal or high

G2

60 - 89

Mildly decreased*

G3A

45 - 59

Mildly to moderately decreased

G3B

30 - 44

Moderately to severely decreased

G4

15 - 29

Severely decreased

G5

<15

Kidney failure