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Question:
When we have a patient who has a lower extremity and upper extremity venous duplex scan (CPT®s 93970 and/or 93971), we sometimes (although rarely) evaluate for an upper and lower deep vein thrombosis (DVT). How should we bill if we image all four extremities?
Answer:
If venous duplex scans of both the upper and lower extremities are performed, you bill 93970 twice if both are bilateral or 93971 twice if unilateral or otherwise limited. It would not be appropriate to report 93970 when, for example, the left arm and the right leg are imaged. In that case report limited code 93971 twice. Modifier -59 (distinct procedural service) would be needed on the second code to indicate that it was a different body area.
| 93970 | Duplex scan of extremity veins including responses to compression and other maneuvers; complete bilateral study |
| 93971 | unilateral or limited study |
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CPT® copyright 2023 American Medical Association (AMA). All rights reserved.
Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
CPT is a registered trademark of the American Medical Association.
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