Summary & Overview
CPT 61703: Intracranial Aneurysm Clipping with Carotid Control
CPT code 61703 represents open surgical clipping of an intracranial aneurysm with proximal control of the internal carotid artery. This high-acuity neurosurgical procedure is central to cerebrovascular care for patients with ruptured or unruptured aneurysms when endovascular options are unsuitable. Nationally, the code matters because it is tied to complex inpatient surgical episodes, resource-intensive operating room time, and multidisciplinary perioperative management.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for the procedure, procedural setting and service type, and benchmarking information where available. The publication summarizes reimbursement and billing considerations, common modifiers used with 61703, and operational implications for hospital billing teams.
The report provides a concise clinical summary, outlines expected site-of-service patterns, and highlights items for billing and coding teams to verify when documenting open aneurysm clipping procedures. Data not available in the input will be noted where applicable.
Billing Code Overview
CPT code 61703 describes a neurosurgical procedure in which a portion of the skull is removed to access and clip a cerebral aneurysm. The surgeon locates the aneurysm and the feeding vessel, accesses the internal carotid artery via a neck incision, temporarily occludes the artery with a clamp, and places a tiny metal clip on the aneurysm neck to halt blood flow.
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Service type: Open intracranial aneurysm clipping with proximal carotid control
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Typical site of service: Inpatient operating room (neurosurgical suite) in an acute care hospital
Clinical & Coding Specifications
Clinical Context
A 57-year-old patient presents with a ruptured saccular intracranial aneurysm of the anterior communicating artery causing subarachnoid hemorrhage and acute neurologic decline. Neuroimaging (CT angiography and digital subtraction angiography) confirms a surgically accessible aneurysm arising from a branch of the anterior cerebral circulation with a suitable neck for microsurgical clipping. The patient is admitted to a tertiary care neurosurgical service, receives stabilization (airway, blood pressure control, reversal of anticoagulation if applicable), and is taken to the operating room for an open craniotomy and microsurgical clipping.
The operative workflow includes general endotracheal anesthesia, a scalp incision and craniotomy to remove a portion of skull bone, microsurgical dissection to expose the aneurysm and parent vessel, exposure of the ipsilateral internal carotid artery via a cervical incision for proximal control if required, temporary vascular occlusion with a clamp, and placement of a permanent aneurysm clip across the aneurysm neck. Intraoperative neuromonitoring and micro-Doppler or indocyanine green angiography may be used to confirm vessel patency. Postoperatively the patient is transferred to a neurosurgical intensive care unit for monitoring of neurologic status, vasospasm surveillance, and blood pressure management.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier (standard) | Used when no additional modifier applies and the service is billed as usual. |