Coding abnormal diagnostic testing

I just want to clear something up that's been a debate. If you are coding from a diagnostic report, and the report indicates a definitive diagnosis (e.g. a carotid u/s was done carotid artery stenosis was found), would it be appropriate to either:

A) report only the carotid stenosis (433.10)

B) report 433.10 AND a code for an abnormal carotid u/s

Any feedback and links to resources would be appreciated :)

Coding abnormal diagnostic testing