Updates to the original algorithm listed under PheKB phenotype #1710 and published here. Additional inclusion and exclusion terms have been added.

This algorithm builds off prior phenotyping work from Pacheco & Thompson available in the PheKB phenotype "Diverticulosis and Diverticulitis" as well as the manuscripts from Joo et al (2023)(1) and De Roo et al (2023) (2) . The objective is to approximate diverticular disease severity from the electronic medical record into groups of asymptomatic diverticulosis, mild diverticulitis, and severe diverticulitis.