Thank you for your inquiry regarding Appropriate Treatment for ST-Segment Elevation Myocardial Infarction (STEMI) Patients in the Emergency Department (ED) (CMS0996v4). Our understanding is that you recommend including CPT code 33967 “percutaneous insertion of an intra-aortic balloon assist device” in the “Insertion or Replacement of Mechanical Circulatory Assist Device” value set (OID: 2.16.840.1.113883.3.3157.4052) to ensure these patient cases are excluded from the measure denominator. We also acknowledge your note that this CPT code reflects the most common procedure performed on STEMI patients, and that multiple sites use this code. The measure developer will consider adding CPT 33967 to the "Insertion or Replacement of Mechanical Circulatory Assist Device" value set CMS during the next Annual Update.

Value set does not include CPT Code 33967 (percutaneous insertion of an intra-aortic balloon assist device - IABP) and is not excluding cases from denominator that have an "Insertion of an intra-aortic balloon assist device Within 24 hours before start of ED encounter or during ED encounter - Mechanical circulatory assist device placement, including: aortic balloon pump, intra-aortic balloon.