I65.23 - Occlusion and stenosis of bilateral carotid arteries

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Arteriosclerosis of carotid artery
• Atherosclerosis of left carotid artery
• Atherosclerosis of right carotid artery
• Bilateral atherosclerosis of carotid arteries
• Bilateral carotid artery occlusion
• Bilateral embolism of carotid arteries
• Bilateral stenosis of carotid arteries
• Carotid artery embolism
• Carotid artery occlusion
• Carotid artery thrombosis
• Carotid atherosclerosis
• Embolism of left carotid artery
• Embolism of right carotid artery
• Left carotid artery occlusion
• Left carotid artery stenosis
• Right carotid artery occlusion
• Right carotid artery stenosis
• Thrombosis of bilateral internal carotid arteries
• Thrombosis of internal carotid artery
• Thrombosis of left carotid artery
• Thrombosis of left internal carotid artery
• Thrombosis of right carotid artery
• Thrombosis of right internal carotid artery

Clinical Information

• Carotid Artery Thrombosis-. blood clot formation in any part of the carotid arteries. this may produce carotid stenosis or occlusion of the vessel, leading to transient ischemic attack; cerebral infarction; or amaurosis fugax.

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Patient Education

Carotid Artery Disease

Your carotid arteries are two large blood vessels in your neck. They supply your brain and head with blood. If you have carotid artery disease, the arteries become narrow or blocked, usually because of atherosclerosis. Atherosclerosis is the buildup of plaque, which is made up of fat, cholesterol, calcium, and other substances found in the blood.

Carotid artery disease is serious because it can block the blood flow to your brain, causing a stroke. Too much plaque in the artery can cause a blockage. You can also have a blockage when a piece of plaque or a blood clot breaks off the wall of an artery. The plaque or clot can travel through the bloodstream and get stuck in one of your brain's smaller arteries.

Carotid artery disease often does not cause symptoms until the blockage or narrowing is severe. One sign may be a bruit (whooshing sound) that your doctor hears when listening to your artery with a stethoscope. Another sign is a transient ischemic attack (TIA), a "mini-stroke." A TIA is like a stroke, but it only lasts a few minutes, and the symptoms usually go away within an hour. Stroke is another sign.

Imaging tests can confirm whether you have carotid artery disease.

Treatments may include:

• Healthy lifestyle changes
• Medicines
• Carotid endarterectomy, surgery to remove the plaque
• Angioplasty, a procedure to place a balloon and stent into the artery to open it and hold it open

NIH: National Heart, Lung, and Blood Institute

Code History

• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)