Ask Dr. Z

I am hoping for your feedback regarding pre-operative vein mapping for ERFA. Patients presents to general surgeon for initial visit with subsequent diagnostic Duplex performed by vascular specialty (i.e. 93970). Based on findings the patient is then scheduled for ERFA 1-3+ months later by the general surgeon with pre-procedure vein mapping performed by the vascular specialty. Question surrounds the allowance to bill for the vein mapping. Per Medicare one pre-procedure Doppler/Duplex is allowed. Would this refer to the diagnostic study initially performed? There is no specific vein mapping code allowance for ERFA nor do I believe the vein mapping supports billing for a Duplex (93970/71). We want to be sure to capture what is supported in this case while ensuring we are payer compliant. Your guidance surrounding appropriate billing for the pre-procedure vein mapping in this case scenario is much appreciated.