CPT 00670: Anesthesia for Extensive Spine Instrumentation and Vascular Procedures
CPT code 00670 denotes anesthesia services provided during extensive spine and spinal cord procedures that include spinal instrumentation (implantation of plates and screws) and associated vascular procedures. This code captures complex intraoperative anesthetic management for high-acuity cases with prolonged operative time, significant hemodynamic risk, and potential for substantial blood loss. Nationally, accurate use of 00670 matters for clinical documentation, billing consistency, and recognition of resource intensity for perioperative anesthesia teams.
Key payers included in this overview are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for 00670, typical sites of service, and how this code relates to common spine and instrumentation procedures. The publication summarizes coding relationships to related surgical procedures and highlights common diagnostic presentations that align with use of the code, such as lumbar disc displacement, spinal stenosis, low back pain, spinal cord disease, and lumbar vertebral fractures.
The content provides operationally relevant benchmarks and policy context, including payer coverage considerations and mapping to related surgical procedure codes to support coding accuracy and administrative workflows. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 00670 describes anesthesia services for extensive spine and spinal cord procedures, including spinal instrumentation with implantation of plates and screws to stabilize the spine, and concurrent vascular procedures on blood vessels. The service involves anesthetic management for complex, often multilevel spinal operations that may include instrumentation and vascular repair or procedures performed in the same operative session.
Service Type: Anesthesia for major spine and spinal cord surgery with instrumentation and vascular procedure components
Typical Site of Service: Inpatient or hospital operating room
National Reimbursement Benchmarks
National commercial rates for CPT 00670 center around BUCA’s average commercial benchmark of $82.60, with individual commercial payers showing meaningful variation. Blue Cross Blue Shield’s interdecile spread (P75–P25) is $34.50, Cigna’s spread is $52.20, Aetna’s spread is $53.00, and UnitedHealth Group’s spread is $27.00, indicating Cigna and Aetna exhibit the widest mid‑distribution dispersion while UnitedHealth Group and Blue Cross Blue Shield are comparatively tighter.
Beyond dispersion, payers also differ in central tendency: Blue Cross Blue Shield and UnitedHealth Group sit below BUCA’s average commercial benchmark on mean rates, while Cigna and Aetna have higher mean benchmarks. These differences reflect a mix of tighter contracted ranges for some payers and broader variability for others, with the largest P75–P25 gaps implying more heterogeneity in allowed amounts across locations or contracts.