I77.1
BillableStricture of artery
HCC Category Mapping
V24HCC 108 — Vascular Disease
0.297ESRDHCC 108 — Vascular Disease
0.000What This Code Means
A narrowing or tightening of an artery that restricts blood flow to tissues and organs supplied by that vessel.
Coding Tips
- •Document the specific artery affected for more precise coding when available
- •Differentiate from atherosclerotic stenosis which may have different coding requirements
Clinical Significance
Stricture of an artery refers to acquired narrowing of an arterial lumen not attributable to atherosclerosis, often resulting from fibromuscular dysplasia, radiation, prior surgical repair, or external compression. This condition can compromise distal blood flow and requires ongoing surveillance or intervention. Accurate coding distinguishes this from atherosclerotic stenosis which has its own code categories.
Documentation Requirements
- ✓Documentation of arterial stricture with identification of the affected artery
- ✓Etiology when known (post-surgical, radiation-induced, inflammatory, compression)
- ✓Imaging confirmation (angiography, duplex ultrasound, CT angiography)
- ✓Degree of stenosis and hemodynamic significance
- ✓Distal perfusion assessment
- ✓Treatment plan (surveillance, angioplasty, stenting, surgical revision)
Commonly Confused Codes
I70.x — Atherosclerosis: atherosclerotic stenosis has specific codes — I77.1 is for non-atherosclerotic strictureI77.3 — Arterial fibromuscular dysplasia: specific etiology that can cause arterial stricture but has its own codeI65-I66 — Occlusion and stenosis of precerebral/cerebral arteries: cerebrovascular stenosis has specific codesT82.855 — Stenosis of peripheral vascular stent: post-stent stenosis has a complication code