Ya know, the best place to get that info is from the
CMS or
AMA, or your credentialing organization. AHIMA and
AAPC both have member
medical coding forums where you can get help. Other forum don't have much traffic so they won't be much help. AAPC has 65,000+ members that can help you out, and AHIMA has around 40,000 members. I'd suggest not wasting your time with these other websites and just stick to your credentialing organization. Contributing to where you got certified will add value to your certification because the people who DO have the same certification as you are more educated and have better resources than those who don't have a certification or access to the member forums.
Contributing to your credentialing organization will bring you the better value because employers will see more value in that organization and you too.