Validating a novel algorithm to identify patients with autoimmune hepatitis in an administrative database.
Therese BittermannNadim MahmudJames D LewisCynthia LevyDavid S GoldbergPublished in: Pharmacoepidemiology and drug safety (2021)
The use of ICD codes for AIH alone are insufficient to reliably identify patients with AIH in health administrative data and claims. Our proposed algorithm that includes additional diagnostic and medication-related coding criteria demonstrates excellent performance.