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36.4.10 Doppler Studies
A Doppler examination is a noninvasive procedure that detects blood flow velocity within an artery or vein. It is commonly used to detect stenosis or occlusion of an artery or vein.
Some of the specific studies done using the Doppler ultrasound are as follows:
• Cerebrovascular evaluation-usually includes a peripheral arterial flow study.
•Thrombosis evaluation-usually includes a peripheral venous vascular study.
•Plethysmography technique-Arterial and/or venous outflow studies, usually done as a pre-operative and post-operative evaluation.
•Evaluation of arteriovenous fistula or malformation.
•Evaluation of arteriovenous shunt.
Doppler studies include the patient care required to perform the studies, supervision and the interpretation of study results. Doppler studies are limited to specific diagnoses for specific procedure codes.
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