%0 Journal Article %T Assessing the Hereditary Hemorrhagic Telangiectasia Algorithms in a Community-Based Patient Population %A Helen Kim %A Jennifer L Schneider %A Jonathan G Zaroff %A Lucy M Almers %A Marie E Faughnan %A Norma Chow %A Scott D Grosse %A Tina Saparia %J Archive of "The Permanente Journal". %D 2019 %R 10.7812/TPP/18-145 %X Hereditary hemorrhagic telangiectasia (HHT) is a rare, genetic, and underdiagnosed disease that causes vascular malformations throughout the body. Two specific combinations of International Classification of Diseases, Ninth Revision-Clinical Modification diagnosis codes, the ¡°HHT Algorithms¡± (HHTAs), were developed previously from a derivation cohort to help identify undiagnosed HHT cases %K arteriovenous malformations %K brain abscess %K hereditary hemorrhagic telangiectasia %K population science %K rare disease surveillance %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6443364/