If anyone is struggling with the medical coding, I would suggest you search videos on youtube for additional explanation. I have found medical coding videos from "AMCI" very helpful. I am a visual learner, so these lectures on E/M codes, modifiers, auditing, etc. have really helped me. Some of the videos are very lengthy, but good. Hope this helps someone else.
I would also like to add the Penn Foster instructors have been very helpful, but sometimes I just need to see it.