CPT code 61698 represents an intracranial surgical repair of a complex aneurysm in the internal vertebrobasilar circulation, a critical posterior brain vascular territory. Nationally, this code captures high-acuity neurosurgical interventions typically performed to address ruptured or high-risk posterior circulation aneurysms and is relevant to hospital inpatient and specialized outpatient operating settings. Key payers commonly involved in coverage and reimbursement for this service include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find a concise clinical context for the procedure, the typical sites of service, and the payer landscape relevant to this high-complexity neurosurgical code. The publication outlines common modifiers associated with the code, notes the absence of input data for associated taxonomies, specific ICD-10 diagnoses, and related codes, and provides benchmarks and policy considerations where available. The summary aims to clarify coding intent and payer relevance for stakeholders managing coverage, billing, or utilization of complex intracranial aneurysm repair services.