CPT codes covered if selection criteria are met: 93886: Transcranial Doppler study of the intracranial arteries; complete study: 93888: limited study: 93890 : vasoreactivity study: 93892: emboli detection without intravenous microbubble injection: 93893: emboli detection with intravenous microbubble injection: Other CPT codes related to the CPB: 61635

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