The document introduces the Kidney Donor Profile Index (KDPI), which was developed to provide a more precise measure of donor kidney quality than the existing Expanded Criteria Donor system. The KDPI is calculated based on 10 donor factors using a statistical model. A higher KDPI indicates a higher risk kidney with potentially shorter graft survival. While KDPI aims to improve organ allocation, there are limitations in its predictive ability and it may disadvantage certain patient groups. Overall, KDPI provides a more detailed assessment of donor quality than binary ECD classification but its role in allocation is still debated.