Ellis RP, Hsu HE, Siracuse JJ, Walkey AJ, Lasser KE, Jacobson BC, Andriola C, Hoagland A, Liu Y, Song C, Kuo TC, Ash AS. Development and Assessment of a New Framework for Disease Surveillance, Prediction, and Risk Adjustment: The Diagnostic Items Classification System. JAMA Health Forum. 2022 03; 3(3):e220276.