The Fault in Our Sets: A Mixed Methods Analysis of Clinical Value Set Errors.

Objective: To characterize clinical value set issues and identify common patterns of errors.

Materials And Methods: We conducted semi-structured interviews with 26 value set experts and performed root cause analyses of errors identified in electronic health records (EHRs). We also analyzed a random sample of user-reported issues from the Value Set Authority Center (VSAC), developing a categorization scheme for value set errors.