ICD-10-CM > I00-I99 > I70-I79 > I72 > I72.0 I72.0 Aneurysm of carotid artery Billable/Specific Copy Code Copy Description Applicable To Aneurysm of common carotid arteryAneurysm of external carotid arteryAneurysm of internal carotid artery, extracranial portion Type 1 Excludes aneurysm of internal carotid artery, intracranial portion (I67.1)aneurysm of internal carotid artery NOS (I67.1)