| Stage 0: | Increase SCr < 0.3mg/dL from baseline AND SCr < 1.5 times baseline |
| Stage 1: | (0.3 mg/dL ≤ increase SCr from baseline < 4mg/dL AND SCr < 1.5 times baseline) OR (increase SCr < 4mg/dL from baseline AND SCr ≥1.5 times baseline AND SCr < 2.0 times baseline) |
| Stage 2: | Increase SCr < 4 mg/dL from baseline AND SCr ≥ 2.0 times baseline AND SCr < 3.0 times baseline) |
| Stage 3: | Increase SCr ≥ 4 mg/dL from baseline OR SCr ≥ 3.0 times baseline OR need for Renal Support Therapy (AKISCr+RST) |