CKD Classification as proposed by KDIGO Controversies Conference Report 2012

Albuminuria stages, description and range (mg/g or mg/mmol)

A1

A2

A3

GFR Stages description and range (ml/min per 1.73m2)

  

Optimal and high normal

high

Very high and nephrotic

<10 <1

10-29 1-2.9

30-299 3-30

300-1999 30-199

>2000 >200

G1

High and Optimal

>105

  

 

 

 

 

 

90-104

 

 

 

 

 

G2

Mild

75-89

 

 

 

 

 

60-74

 

 

 

 

 

G3a

Mild-Moderate

45-59

 

 

 

 

 

G3b

Moderate

30-44

 

 

 

 

 

G4

Severe

15-29

 

 

 

 

 

G5

Kidney Failure

<15

 

 

 

 

 
Table 2: The proposed classification of chronic kidney disease (CKD) incorporating albuminuria category (Albumin to Creatinine ratio) and estimated glomerular filtration rate GFR (eGFR) stage as proposed in the Kidney Disease: Improving Global Outcomes (KDIGO) Controversies Conference Report 2012 [7].