Takayasu's disease

This code represents Takayasu's arteritis, a rare, chronic inflammatory disease affecting the large arteries, primarily the aorta and its main branches. It leads to narrowing, occlusion, or aneurysmal dilation of these vessels, often resulting in reduced blood flow to various organs.

Use this code for documented cases of Takayasu's arteritis, typically confirmed by imaging studies (e.g., angiography, MRA, CTA) showing characteristic arterial changes, along with clinical signs and symptoms such as claudication, pulse deficits, or bruits. It is appropriate when the physician's diagnosis explicitly states Takayasu's disease.

• Ensure documentation specifies "Takayasu's disease" or "Takayasu's arteritis" to support this specific code.
• Code any associated manifestations or complications, such as hypertension, stroke, or renal artery stenosis, as secondary diagnoses.
• Differentiate from other forms of vasculitis; this code is specific to Takayasu's.