It is important for medical coders to understand how to accurately assign atherosclerosis coronary artery disease (CAD) with angina. If the provider’s documentation states a patient has CAD with angina, then it is NOT appropriate to capture a diagnosis for both conditions separately. Per coding guidelines, it is appropriate to report the combination diagnosis code for CAD with angina pectoris. So since the combination diagnosis code is reported, there is no need to report the separate diagnosis code for angina pectoris.