Contrast-induced acute kidney injury (CI-AKI) is a serious complication that can affect outcome and prognosis of patients undergoing percutaneous diagnostic and interventional procedures. The Italian Society of Interventional Cardiology (SICI-GISE) has promoted a consensus project on the subject of CI-AKI in order to disseminate and implement nephroprotection strategies in interventional cardiology. The initiative was conducted in partnership with the Italian Society of Nephrology (SIN).