CPT code 61686 denotes surgical removal of a complex arteriovenous malformation (AVM) in the infratentorial region of the brain, involving a craniectomy or craniotomy and resection of AVM tissue. This code is used for AVMs typically larger than 3 cm that may have deep venous drainage or involve eloquent cortical areas tied to sensory, speech, or language functions. Nationally, procedures coded with 61686 are high-acuity neurosurgical interventions requiring specialized surgical teams, advanced intraoperative monitoring, and intensive postoperative care.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, expected site-of-service, and the significance of this code for hospital service lines and neurosurgery departments. The publication highlights common billing and documentation themes surrounding complex AVM resections and outlines which payers are included in the benchmarking and policy discussion.

This summary prepares clinicians, coding professionals, and hospital administrators to understand where 61686 fits into clinical practice and billing workflows, what to expect from payer coverage considerations, and which operational areas (surgical suite, neurocritical care) are typically involved. Data not available in the input is explicitly noted where applicable in the full publication.