I77.72
BillableDissection of iliac artery
HCC Category Mapping
V24HCC 107 — Vascular Disease with Complications
0.450ESRDHCC 107 — Vascular Disease with Complications
0.000What This Code Means
A tear in the inner lining of the iliac artery in the pelvis or lower abdomen, which can restrict blood flow to the lower extremities.
Coding Tips
- •Specify laterality (right or left) when documented
- •May be associated with trauma, surgery, or occur spontaneously
Clinical Significance
Dissection of the iliac artery is a serious vascular condition affecting the major arterial supply to the lower extremities and pelvic organs. This can result from trauma, iatrogenic causes during catheterization, or spontaneous dissection. The condition carries risk of limb ischemia and requires close monitoring or intervention, placing it in the higher-risk vascular disease with complications category.
Documentation Requirements
- ✓Imaging confirmation of iliac artery dissection (CT angiography or conventional angiography)
- ✓Specification of common, internal, or external iliac artery involvement
- ✓Laterality — right, left, or bilateral
- ✓Etiology — spontaneous, traumatic, or iatrogenic (post-catheterization)
- ✓Assessment of lower extremity perfusion and any ischemic symptoms
- ✓Treatment plan including endovascular repair, surgical intervention, or conservative management
Commonly Confused Codes
I77.70 — Dissection of unspecified artery: less specific; use I77.72 when iliac is documentedI72.3 — Aneurysm of iliac artery: dilation rather than dissectionI74.5 — Embolism and thrombosis of iliac artery: occlusion mechanism differsI77.77 — Dissection of artery of lower extremity: for arteries distal to the iliac
Code Hierarchy
└I77Other disorders of arteries and arterioles└I77.7Other arterial dissection└I77.72Dissection of iliac artery
└I77.72Dissection of iliac artery