Chronic kidney disease has five stages Stage 1: GFR > 90 mL/min, either normal or high. Mild CKD in Stage 2 (GFR = 60-89 mL/min) Moderate CKD, Stage 3A (GFR = 45–59 mL/min) Stage 3B of moderate CKD (GFR = 30-44 mL/min). Severe CKD in Stage 4 (GFR = 15–29 mL/min). End Stage CKD (Stage 5; GFR <15 mL/min).