2026 ICD-10-CM Diagnosis Code I72.0Aneurysm of carotid artery

AHRQ’s CCSR groups this code into broader clinical categories.

• Aneurysm

  pathological outpouching or sac-like dilatation in the wall of any blood vessel (arteries or veins) or the heart (heart aneurysm). it indicates a thin and weakened area in the wall which may later rupture. aneurysms are classified by location, etiology, or other characteristics.

• Aneurysm, Aortic Arch

  an abnormal balloon- or sac-like dilatation in the wall of the aortic arch.

• Aneurysm, Ascending Aorta

  an abnormal balloon- or sac-like dilatation in the wall of the ascending aorta.

• Aneurysm, False

  not an aneurysm but a well-defined collection of blood and connective tissue outside the wall of a blood vessel or the heart. it is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. false aneurysm is formed by organized thrombus and hematoma in surrounding tissue.

• Aneurysm, Infected

  aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.

• Aneurysm, Ruptured

  the tearing or bursting of the weakened wall of the aneurysmal sac, usually heralded by sudden worsening pain. the great danger of a ruptured aneurysm is the large amount of blood spilling into the surrounding tissues and cavities, causing hemorrhagic shock.

• Aortic Aneurysm

  an abnormal balloon- or sac-like dilatation in the wall of aorta.

• Aortic Aneurysm, Abdominal

  an abnormal balloon- or sac-like dilatation in the wall of the abdominal aorta which gives rise to the visceral, the parietal, and the terminal (iliac) branches below the aortic hiatus at the diaphragm.

• Aortic Aneurysm, Thoracic

  an abnormal balloon- or sac-like dilatation in the wall of the thoracic aorta. this proximal descending portion of aorta gives rise to the visceral and the parietal branches above the aortic hiatus at the diaphragm.

• Aortic Aneurysm, Thoracoabdominal

  an abnormal balloon- or sac-like dilatation in the wall of abdominal aorta at the aortic hiatus.

• Aortic Dissection

  a tear in the inner layer of the aorta leading to interstitial hemorrhage, and splitting (dissecting) of the aortic tunica media layer. it typically begins with a tear in the tunica intima layer.

• Aortic Root Aneurysm

  an abnormal balloon- or sac-like dilatation in the wall of the aortic root.

• Aortic Rupture

  the tearing or bursting of the wall along any portion of the aorta, such as thoracic or abdominal. it may result from the rupture of an aneurysm or it may be due to trauma.

• Arteriovenous Fistula

  an abnormal direct communication between an artery and a vein without passing through the capillaries. an a-v fistula usually leads to the formation of a dilated sac-like connection, arteriovenous aneurysm. the locations and size of the shunts determine the degree of effects on the cardiovascular functions such as blood pressure and heart rate.

• Bone Cysts, Aneurysmal

  fibrous blood-filled cyst in the bone. although benign it can be destructive causing deformity and fractures.

• Coronary Aneurysm

  abnormal balloon- or sac-like dilatation in the wall of coronary vessels. most coronary aneurysms are due to coronary atherosclerosis, and the rest are due to inflammatory diseases, such as kawasaki disease.

• Descending Thoracic Aortic Aneurysm

  an abnormal balloon- or sac-like dilatation in the wall of the descending thoracic aorta.

• Endovascular Aneurysm Repair

  a minimally invasive surgical technique to repair aneurysms through the lumen of a blood vessel.

• Heart Aneurysm

  a localized bulging or dilatation in the muscle wall of a heart (myocardium), usually in the left ventricle. blood-filled aneurysms are dangerous because they may burst. fibrous aneurysms interfere with the heart function through the loss of contractility. true aneurysm is bound by the vessel wall or cardiac wall. false aneurysms are hematoma caused by myocardial rupture.

• Iliac Aneurysm

  abnormal balloon- or sac-like dilatation in the wall of any one of the iliac arteries including the common, the internal, or the external iliac artery.

• Intracranial Aneurysm

  abnormal outpouching in the wall of intracranial blood vessels. most common are the saccular (berry) aneurysms located at branch points in circle of willis at the base of the brain. vessel rupture results in subarachnoid hemorrhage or intracranial hemorrhages. giant aneurysms (>2.5 cm in diameter) may compress adjacent structures, including the oculomotor nerve. (from adams et al., principles of neurology, 6th ed, p841)

• Microaneurysm

  aneurysm of the microvasculature. charcot–bouchard aneurysms are aneurysms of the brain vasculature which is a common cause of cerebral hemorrhage. retinal microaneurysm is an early diagnostic sign of diabetic retinopathy.

• Popliteal Artery Aneurysm

  an abnormal balloon- or sac-like dilatation in the wall of the popliteal artery located behind the knee joint.

• Subarachnoid Hemorrhage

  bleeding into the intracranial or spinal subarachnoid space, most resulting from intracranial aneurysm rupture. it can occur after traumatic injuries (subarachnoid hemorrhage, traumatic). clinical features include headache; nausea; vomiting, nuchal rigidity, variable neurological deficits and reduced mental status.

• Aorta

  the main trunk of the systemic arteries.

• Iliac Artery

  either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs.

Aneurysms

An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.