Hi Dana,
This is a screening ultrasound that Medicare reimburses to male members, one time only, who are over 65-75 with a long history of smoking. The procedure is to evaluate for Aortic Anyeursm by checking blood flow in the aorta. I thinking 76706 with the ICD-10 code as you suggested, Z87.891?
The other codes, 76770, 76775, 93978, and 93979 are not for screening according to what I have read.
If you have a chance just let me know if you agree.
Thank you!