Patient presents with concerns regarding internal carotid artery aneurysm (ICA aneurysm), possibly symptomatic.  Differential diagnosis includes migraine, transient ischemic attack (TIA), and other cerebrovascular disorders.  Patient reports [Insert chief complaint, e.g., pulsatile tinnitus, headache, cranial nerve palsy, transient visual disturbances, or asymptomatic incidental finding].  Review of systems reveals [Insert pertinent positives and negatives related to neurological function, cardiovascular health, and relevant comorbidities].  Past medical history includes [List relevant medical conditions, e.g., hypertension, hyperlipidemia, smoking history, connective tissue disorders].  Family history is significant for [Note any family history of aneurysms, stroke, or vascular disease].  Physical examination reveals [Document neurological exam findings, including cranial nerve assessment, motor strength, sensory function, and auscultation for carotid bruit].  Diagnostic imaging, including CTA head and neck or MRA head and neck, was ordered to evaluate for suspected ICA aneurysm.  Imaging results indicate [Describe aneurysm size, location, morphology, and relationship to surrounding structures].  Based on the clinical presentation, imaging findings, and patient's risk factors, the diagnosis of internal carotid artery aneurysm is confirmed.  Treatment options, including conservative management with risk factor modification, endovascular coiling, or surgical clipping, were discussed with the patient.  Risks and benefits of each approach were explained.  Patient will follow up for [Specify follow-up plan, including imaging surveillance or intervention scheduling].  ICD-10 code I72.1 (Aneurysm of carotid artery) is applicable.  CPT codes for diagnostic imaging and potential interventions will be determined based on the final treatment plan.  This documentation supports medical necessity for further evaluation and management of this potentially life-threatening condition.