Looking for some advice on this question. Would a total joint replacement fall under a chronic illness? This surgery was complete to remove the OA which is a chronic illness however, now the total joint components are with the patient for the foreseeable future (greater than one year). The components could cause issues months or years down the road. I have been placing joint replacement patients under level 3 (complexity) on the MDM grid. Please correct me if I am wrong, my current team is split on this topic. Thanks!