Aneurysm of artery of upper extremity

This code signifies a localized, abnormal dilation or ballooning of an artery located in the upper limb, including the shoulder, arm, forearm, or hand. This weakening of the arterial wall can be congenital or acquired due to trauma, atherosclerosis, or infection.

Apply this code when documentation clearly states the presence of an aneurysm affecting an artery of the upper extremity, such as a brachial, radial, or ulnar artery aneurysm. Supporting documentation should include diagnostic imaging reports (e.g., ultrasound, CT angiography, MRI) confirming the aneurysm's presence and location.

• Differentiate from pseudoaneurysms, which involve a contained hematoma rather than a true arterial wall dilation.
• Specify the exact artery involved if known and if a more specific ICD-9-CM code exists (though for upper extremity, this is often the most specific).
• Consider additional codes for any underlying cause (e.g., atherosclerosis, trauma) or associated complications.