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If a patient with coronary arteriosclerosis disease sees a cardiologist for the first time regarding a CABG, what is the correct ICD-10-CM code?

  1. I25.110 Atherosclerotic heart disease of native coronary artery with angina pectoris

  2. I25.810 Atherosclerosis of coronary artery bypass graft(s) without angina pectoris

  3. I25.790 Atherosclerosis of other coronary artery bypass graft(s) with unstable angina pectoris

  4. I25.10 Atherosclerotic heart disease of native coronary artery without angina pectoris

The correct answer is: I25.10 Atherosclerotic heart disease of native coronary artery without angina pectoris

The selection of the appropriate ICD-10-CM code for a patient with coronary arteriosclerosis disease who is being evaluated by a cardiologist for coronary artery bypass grafting (CABG) hinges on accurately capturing the nature of the condition as well as the absence of specific symptoms. The code I25.10 is used to describe atherosclerotic heart disease of a native coronary artery without any stated angina pectoris. In this scenario, since the question mentions that the patient is being seen regarding a potential CABG and does not indicate the presence of angina, this code is the most precise fit. It accurately reflects the diagnosis of coronary arteriosclerosis while acknowledging that the patient does not exhibit angina symptoms at this visit. In contrast, the other options involve variations of the condition related to symptoms or specific types of coronary arteries (native vs. graft). For instance, some codes specifically reference involvement with bypass grafts or the presence of angina. Thus, they do not align appropriately with the situation of a first-time visit to address the condition of coronary arteriosclerosis without any listed symptoms of angina.