Funny you should ask this now. I was looking at an old copy of the Coding Edge from Jan 2007 I believe last night. It had a map with State Coder's Day listings. I think 33 states have Coder's Day and it listed the dates. If I remember I will look today at Arizona and let you know. You could also check with the local chapters there, it is usually a chapter that gets the ball rolling. I am in DC and we actually petition the Mayor's office and he gives us a proclamation. District Medical Coder's Day is July 12th.