Below is a list summarizing the CPT codes for non-invasive cerebrovascular arterial studies. CPT Code 93880 CPT 93880 describes a complete bilateral study of a duplex scan of extracranial arteries. CPT Code 93882 CPT 93882 describes a duplex scan of extracranial arteries with either a unilateral or limited study. CPT Code 93886 CPT 93886 describes…