ICD-10 Code I77.72 – Dissection of iliac artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I77.72 – Dissection of iliac artery
What it is
I77.72 identifies a dissection in the iliac artery, where a tear in the vessel wall allows blood to split its layers. Use it for documented iliac artery dissection, whether acute or chronic if the record does not specify otherwise.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include pelvic or lower extremity pain, limb ischemia, diminished pulses, or imaging evidence of an intimal flap or false lumen in the iliac artery.
When to use this code
Use I77.72 when the provider documents dissection of the iliac artery as the diagnosis. It is appropriate when imaging, operative reports, or specialist notes confirm the lesion in the common, internal, or external iliac artery. If laterality or acuity is unclear, code what is documented and check the chart for specificity.
Do not use for
Do not use this code for iliac artery aneurysm, stenosis, or occlusion without dissection. If the documentation only says “vascular disease” or another arterial abnormality, check documentation before assigning I77.72.
Coding tip
Confirm the exact artery involved and look for words like “dissection,” “intimal flap,” or “false lumen” in the report.