Dissection of renal artery

This code represents an intimal tear in the renal artery wall, leading to separation of the layers and creation of a false lumen. This dissection can compromise blood flow to the kidney, potentially causing renal ischemia or infarction. It is a form of arterial dissection specifically affecting the renal vasculature.

Apply this code when documentation explicitly states a dissection of the renal artery. This diagnosis is often made via imaging studies such as CT angiography, MRI, or conventional angiography. Clinical scenarios include acute flank pain, hypertension, or acute kidney injury in the context of a confirmed renal artery dissection.

• Differentiate from renal artery aneurysm or stenosis; this code is specific to dissection.
• Ensure documentation specifies "dissection" of the renal artery, not just a general renal artery anomaly.
• Consider sequencing with codes for associated conditions like hypertension (I10) or acute kidney injury (N17.xx) if present.