CPT code 61690 denotes an open neurosurgical procedure—craniectomy with resection of a simple dural arteriovenous malformation (AVM) measuring 3 cm or less, easily accessible and lacking deep venous drainage or involvement of eloquent cortex. This procedure represents a specific, high-complexity operative intervention important for surgical management of select intracranial vascular lesions. Nationally, accurate coding of 61690 affects claims processing, case mix classification, and monitoring of neurosurgical service utilization.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines clinical context for appropriate use of the code, common billing modifiers, typical sites of service, and payer coverage considerations. Readers will find benchmarks for utilization, coding guidance drawn from the code description, and summaries of payer policy themes where available. The content is intended to help billing managers, clinical coders, and policy analysts understand the clinical scenario represented by 61690, how it maps to surgical service lines, and what elements drive payer adjudication and documentation requirements.

Data not available in the input for some fields (such as detailed payer policy differences, associated taxonomies, and specific ICD-10 diagnosis pairings) is noted where applicable.