To perform a Duplex scanning it is necessary to perform a real time scan, therefore the billing of a Duplex scanning and an ultrasound scan (Doppler) of the same part of the body represents «unbundling» and does not proceed for payment.
The complete physiological study of an extremity includes the measures of pressure and another of the physiological studies (e.g. Doppler).
Duplex scanning and physiological studies will be paid only during the same date encounter under the following conditions:
If the physiological studies are abnormal
In the evaluation of vascular trauma
In the evaluation of thromboembolic events
In the evaluation of aneurismal disease
The ankle / brachial index, even though it is required, is not a procedure that proceeds for payment by itself.
