Summary & Overview

CPT 61692: Resection of Complex Dural Arteriovenous Malformation

CPT code 61692 denotes an open cranial neurosurgical procedure for removal of a complex dural arteriovenous malformation (AVM), typically larger than 3 cm and potentially involving deep venous drainage or eloquent cortex. As a high-complexity operative code, it captures care with elevated surgical risk, extended operative time, and intensive inpatient resources. Nationally, accurate reporting of this code matters for clinical registries, quality measurement, payment validation, and tracking utilization of high-acuity neurosurgical services.

Key payers commonly involved in coverage and claims adjudication include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of the clinical context for CPT code 61692, typical site of service and service type, and guidance on what to expect in payer coverage discussions. The publication also summarizes benchmarks and policy-relevant issues readers should watch, including coding specificity for complex intracranial AVMs, documentation elements that support medical necessity, and intersections with quality reporting and inpatient reimbursement frameworks.

This national-level brief is intended for hospital billing teams, neurosurgery groups, revenue cycle managers, and policy analysts seeking a clear, practical overview of the code, its clinical implications, and the payer landscape relevant to high-complexity cranial AVM resections.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare61692CPTneurosurgeryarteriovenous malformationcraniotomyinpatientcomplex-surgerydural-avm

Billing Code Overview

CPT code 61692 describes a neurosurgical procedure in which a portion of the skull (craniotomy) is removed and a complex arteriovenous malformation (AVM) is resected from the dura mater, the brain's thick outer covering. The procedure targets AVMs larger than 3 cm and may involve deep venous drainage or cortical areas responsible for sensation, speech, or language, increasing hemorrhage risk and surgical complexity.

Service type: Open cranial neurosurgical resection for complex dural AVM
Typical site of service: Inpatient hospital operating room with postoperative inpatient care

Clinical & Coding Specifications

Clinical Context

A 45-year-old right-handed patient presents with progressive headaches, intermittent focal seizures, and intermittent left-sided weakness. Neuroimaging with MRI and cerebral angiography demonstrates a large, complex dural-based arteriovenous malformation (AVM) greater than 3 cm in maximum dimension with deep venous drainage and involvement of eloquent cortex near language and motor areas. After multidisciplinary review by neurosurgery, neurointerventional radiology, and neurology, the care plan includes an open craniotomy with partial skull bone removal (craniectomy/craniotomy) and microsurgical resection of the dural AVM. The patient is admitted preoperatively for baseline neurologic exam, medication optimization, and anesthetic evaluation. Intraoperative neurophysiologic monitoring and temporary vessel control techniques are used. Postoperatively the patient is transferred to a neurosurgical intensive care unit for close neurologic monitoring, blood pressure control, and imaging (CT/MR) to assess for hemorrhage or residual nidus. Rehabilitation and outpatient follow-up with serial angiography are planned to confirm complete resection and to manage neurologic deficits if present.

Coding Specifications

Modifier	Description	When to Use
`62`	Two surgeons	When two surgeons work together as primary surgeons on separate, substantive portions of the procedure (e.g., complex AVM resection requiring dual attending neurosurgeons).
`66`	Surgical team	When a surgical team approach is reported for highly complex neurosurgical procedures requiring documented team care.
`80`	Assistant surgeon	When a qualified assistant surgeon provides intraoperative assistance.
`81`	Minimum assistant surgeon	When only minimal assistance is required and documented.
`82`	Assistant surgeon (unusual circumstance)	When an assistant surgeon is used but a qualified resident is unavailable; documented unusual circumstances.
`22`	Unusual procedural services	For significantly greater complexity, time, or effort than typical for AVM resection; requires supporting operative and anesthesia documentation.
`50`	Bilateral procedure	If bilateral craniotomies/resections are performed and documentation supports bilateral service.
`52`	Reduced services	When the service is partially reduced or not completed as planned (e.g., aborted resection).
`53`	Discontinued procedure	For a procedure terminated before completion for patient-related or intraoperative reasons.
`73`	Discontinued outpatient hospital/ambulatory surgery center (before anesthesia)	If scheduled craniotomy is cancelled after patient arrival but before induction.
`78`	Return to OR for procedure related to original surgery (within global period)	For unplanned reoperation during the global period to manage complications such as postoperative hemorrhage.
`79`	(Not in provided list)	Data not available in the input.

Taxonomy Code	Specialty	Notes
207RH0000X	Neurological Surgery	Primary specialty performing open AVM resection.
2084N0400X	Interventional Neuroradiology	Often involved preoperatively for diagnostic angiography or adjunctive embolization.
208000000X	Vascular Surgery	Occasionally involved when complex cranial vascular reconstruction is required.
207L00000X	Plastic Surgery	May assist with complex cranial reconstruction or cranioplasty planning.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I60.9`	Nontraumatic subarachnoid hemorrhage, unspecified	AVM rupture can present with subarachnoid hemorrhage prompting urgent AVM resection.
`I62.9`	Nontraumatic intracerebral hemorrhage, unspecified	Intracerebral hemorrhage is a common presentation or complication of cerebral AVMs.
`Q28.2`	Arteriovenous malformation of cerebral vessels	Primary diagnosis for dural/cerebral AVMs targeted by this procedure.
`G40.909`	Epilepsy, unspecified, not intractable, without status epilepticus	Seizures may be a presenting symptom of an AVM prompting surgical intervention.
`R51`	Headache	Common presenting symptom that can lead to imaging and detection of an AVM.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`61680`	Craniotomy for excision of vascular malformation, venous malformation, or other vascular lesion; simple or less complex AVM	May be used for smaller or less complex AVMs; contrasts with `61692` which denotes a complex AVM >3 cm or deep venous drainage.
`61695`	Craniectomy for excision of AVM, complex with intracranial involvement (alternative complex AVM code)	Other complex intracranial AVM resection codes that may be considered depending on operative approach and documentation.
`61616`	Ligation or division of intracranial vascular malformation feeders (adjunct)	Performed as an adjunct during microsurgical resection to control arterial feeders.
`61782`	Endovascular embolization, intracranial (for AVM) — diagnostic/therapeutic adjunct	Often performed preoperatively by interventional neuroradiology to reduce nidus size or flow before microsurgical resection.
`61512`	Craniotomy for brain tumor or lesion, supratentorial, except meningioma, pituitary tumor or vascular lesion	May be reported for approaches or combined procedures when appropriate coding criteria are met.
`61445`	Laminectomy, decompression procedures (spine)	Data not applicable specifically; included when spine access or related neurosurgical interventions are performed in combined operative sessions.