What diagnosis code should be used for the Annual Wellness Visit (AWV)?
A diagnosis code must be reported, however, CMS does not require a specific diagnosis code for the Annual Wellness Visit (AWV). Therefore, providers can choose any appropriate diagnosis code. You may also report V70.0 (Routine general medical examination at health care facility)
Reference: https://questions.cms.gov/faq.php?id=5005&faqId=3519