The numerator is written to only include "Diagnostic Study, Result: Mammogram (result)" to show mammogram screen was performed. Since diagnostic studies are most often not "resulted" but are reported as impressions or as findings within a providers note, it is not feasible to only allow the result to show a screening was completed. The numerator should also allow "Procedure, Performed: Mammogram" with mammogram procedure codes for mapping. NQF 34 - Colorectal Cancer Screening is a similar measure and allows both results and procedure performed to satisfy the numerator.