Cracking the Code
Coding Noninvasive Vascular Diagnostic Studies
This type of testing is a painless examination to ascertain if there is any disease within the blood vessels. Noninvasive vascular diagnostic studies are reported for investigation of blood flow in the head, extremities, viscera, and penis. Examples of these studies include duplex scans and transcranial Doppler studies. Duplex scans are ultrasonic scanning procedures confirming patterns and direction of blood flow. The scan produces real-time, two-dimensional images of arteries and veins.
Cerebrovascular arterial studies evaluate right and left anterior and posterior circulation territories (including both the vertebral and basilar arteries) using ultrasound technology. If two or fewer territories are evaluated, report the code for a limited study.