intra articular fracture vs extra articular fracture

I dont think you can...I would suggest going to your doctor(s) and let them know there are new codes and it would help you and greatly benefit ($$$) them if they would be specific by telling you. Also, if it is "intra-articular" then you need to know how many fragments.
The Doctor must dictate this to show up in the body of the report. Not only intra-articular, extra-articular but also it must mention the 2 or 3 and more fragments for the intra-articular. As you know, if it is not in the report, it was not done.