| Description | GFR ml/min/1.73m2 | |
|---|---|---|
| Stage 1 | Kidney damage with normal or increased GFR | ≥ 90 |
| Stage 2 | Kidney damage with mildly decreased GFR | 60-89 |
| Stage 3 | Moderately decreased GFR | 30-59 |
| Stage 4 | Severely decreased GFR | 15-29 |
| Stage 5 | Kidney failure | < 15 or dialysis |