There were no CPT codes or modifiers on my test.
For cases, read the question first and look through the answers first. When I took my exam, I didn't read through the entire case. I mainly just looked at the Assessment and Plan/Discharge Diagnoses. Look at your answers and cross of codes that are the same. You'll see that the difference ends up being just a few codes each question. These are the ones you focus on. That means you won't have to worry about those codes/diagnoses. Someone here also mentioned sequencing. That is very important as knowing which code goes first can eliminate 1-3 answers. Purchase the CRC practice exam. I did not do this for my test, but I have had someone show me the practice exams, and they are very similar to the test. Some of the questions are exactly the same.
The focus on hypertension, ckd, heart failure, and diabetes is also really important, especially with the new changes that have been going on.