ICD-10 For Medical Billers

I was wondering if anyone had any suggestions regarding material that could be used to prepare Medical Billers for ICD-10 implementation. I was trained in coding. But, I work in the billing office. So, I have very basic knowledge of ICD-10 and my coworkers even less. I am trying to find some inexpensive/free material that my office could use to become familiar with the new code set before October.

Any help would be greatly appreciated. Thanks!

ICD-10 For Medical Billers