Headline: CPT code 61700: Open intracranial repair for simple internal carotid circulation aneurysm

Lead: CPT code 61700 denotes an intracranial surgical procedure to repair a simple aneurysm in the internal carotid circulation, typically performed by neurosurgeons in hospital operating rooms to address aneurysms that have caused or risk causing subarachnoid hemorrhage.

CPT code 61700 represents open intracranial aneurysm repair for simple aneurysms located in the internal carotid circulation. The code captures a high-acuity neurosurgical intervention with implications for inpatient hospital resource use, specialized surgical teams, and perioperative critical care. Nationally, this service is clinically significant because it addresses life-threatening cerebrovascular events and influences hospital surgical volumes, resource allocation, and payer coverage decisions.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of typical sites of service and clinical context, along with benchmarking and policy-relevant considerations where available. The publication summarizes typical billing practices, common modifier usage (listed separately), and the clinical scenarios that commonly generate use of CPT code 61700.

What readers will learn: an executive synthesis of the clinical purpose of the code, the care settings where it is performed, the principal payers involved, and what sections of the report address benchmarks, payment policy updates, and clinical context for neurosurgical intracranial aneurysm repair.