ICD-10 Code I74.10 – Embolism and thrombosis of unspecified parts of aorta (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I74.10 – Embolism and thrombosis of unspecified parts of aorta
What it is
This code identifies a clot or embolus blocking the aorta, but the record does not specify the exact aortic segment. Use it when the provider documents aortic embolism or thrombosis without a more precise location.
Clinical signs
Clinical features vary; refer to documentation. Patients may present with sudden ischemic symptoms, pain, or signs of reduced blood flow depending on the affected branch vessels and extent of obstruction.
When to use this code
Use I74.10 when the clinician clearly documents embolism or thrombosis of the aorta and does not identify whether it involves the ascending, arch, descending, or abdominal segment. It also fits when imaging confirms aortic obstruction but the site remains unspecified.
Query the provider if the chart mentions a more specific aortic location or if the event is described as mural thrombus, dissection, or another vascular condition instead. Specificity can change code selection.
Do not use for
Do not use this code for embolism or thrombosis in non-aortic arteries, venous thrombosis, or aortic dissection. Check documentation when the record describes aortic plaque, aneurysm, or ischemia without definite embolus or thrombus.
Coding tip
Code the most specific aortic site documented; if the segment is not stated, I74.10 is the appropriate unspecified option.