DenominatorPatients 18 years of age and older who were diagnosed with acute myocardial infarction (AMI), coronary artery bypass graft (CABG) or percutaneous coronary interventions (PCI) in the 12 months prior to the measurement period, OR who had an active diagnosis of ischemic vascular disease (IVD) during the measurement period (MSSP 2018)
NumeratorReceived an influenza immunization OR who reported previous receipt of an influenza immunization between August 1 of the previous measure year to March 31 of the measure year (MSSP 2019)
Exclusion/Exception• Documentation of medical reason(s) for not receiving influenza immunization (eg, patient allergy, other medical reasons)
• Documentation of patient reason(s) for not receiving influenza immunization (eg, patient declined, other patient reasons)
• Documentation of system reason(s) for not receiving influenza immunization (eg, vaccine not available, other system reasons)
• Patients whose hospice care overlaps the measurement period.