The contrast associated - acute kidney injury (CA-AKI) calculator was developed on 906 inpatient and outpatient adults who underwent intravenous contrast enhanced CT imaging in two tertiary hospitals in Manila, Philppines. Multivariate logistic regression was used to identify independent predictors for CA-AKI. The prediction model had fair predictive power (AUC=0.737) and good calibration (Hosmer-Lemeshow p- value=0.418).