Table 13.

Stages of CKD

Stage	Description	GFR (ml/min per 1.73 m2 body surface area)
1	Kidney damage* with normal or increased GFR	≥90
2	Kidney damage* with mildly decreased GFR	60–89
3	Moderately decreased GFR	30–59
4	Severely decreased GFR	15–29
5	Kidney failure	<15 or dialysis

^*Kidney damage defined as abnormalities on pathologic, urine, blood, or imaging tests. Adapted and reprinted with permission (248).