Hello, I was wondering if someone can give me advise on how to figure out when to add a EKG or a chest xray to the CPT codes. There must be some clue as to when to apply it. I tried so many scenarios on Practicode and it's not clicking. Is there a way to know when they are suppose to be added along with the E/M code? I can't tell when it is bundled in the service or considered extra. Thank you for any help.