Aneurysm of renal artery

This code represents an abnormal, localized dilation or ballooning of a renal artery, which is the blood vessel supplying blood to the kidney. This weakening of the arterial wall can lead to rupture, thrombosis, or embolization, potentially compromising renal function.

Use this code when documentation explicitly states a diagnosis of an aneurysm affecting the renal artery. This diagnosis is typically confirmed through imaging studies such as CT angiography, MRA, or conventional angiography. It applies whether the aneurysm is symptomatic or incidentally discovered.

• Do not confuse this with renal artery stenosis (I70.1) or other renal vascular disorders; ensure the documentation specifies an aneurysm.
• If the aneurysm has ruptured, an additional code for the rupture (e.g., I72.8 for other specified sites) or associated hemorrhage may be necessary, depending on the specific documentation.
• Always review documentation for laterality (left, right, bilateral) if specified, though this particular code does not allow for laterality distinction.