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CPT 00640: Anesthesia for Spine Manipulation or Closed Spinal Procedure
CPT code 00640 designates anesthesia services for manipulation of the spine or closed procedures on the cervical, thoracic, or lumbar spine. This code captures the anesthesiologist or anesthesia team’s work during spine-focused interventions where the procedure is closed or involves manipulation rather than open surgical exposure. Nationally, accurate use of this code affects clinical documentation, anesthesia billing, and resource allocation for perioperative spine care.
The analysis covers major national payers including Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find a concise overview of payer coverage patterns, common clinical contexts tied to the code, and relevant benchmarking and coding relationships with adjacent spine anesthesia codes. The content summarizes expected sites of service and the clinical scenarios in which 00640 is typically reported.
This publication provides operational clarity for billing and coding teams, anesthesia departments, and health policy stakeholders seeking a national perspective on when 00640 applies, how it relates to nearby anesthesia codes for spinal procedures, and what clinical contexts commonly trigger its reporting.
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Billing Code Overview
CPT code 00640 describes anesthesia services provided for manipulation of the spine or for a closed procedure on the cervical, thoracic, or lumbar spine. The service type is anesthesia for spinal manipulation or closed spinal procedures, which involves administration and management of anesthetic care during these spine-focused interventions.
The typical site of service is an operating room or procedure suite where spinal manipulations or closed procedures on the cervical, thoracic, or lumbar spine are performed. These services are delivered by anesthesia professionals in coordination with the surgical or procedural team.
National Reimbursement Benchmarks
National commercial rates for CPT 00640 cluster around the BUCA average commercial rate of $78.80, with payers showing meaningful variation. Cigna posts a higher mean ($105) and wider upper tail (P90 $176.80), while Blue Cross Blue Shield averages $78.10. Aetna and UnitedHealth Group sit below BUCA on median/mean metrics with means of $65 and $68.40 respectively. This places BUCA near the market center but not at the lowest or highest extremes.
Rate dispersion (P75 minus P25) highlights where commercial contracts are tighter or more spread. Aetna’s dispersion is $45.0, Blue Cross Blue Shield’s is $44.6, BUCA’s is $45.5, and UnitedHealth Group’s is $26.3, making UnitedHealth Group the tightest spread. Cigna shows the widest dispersion at $61.9, indicating greater variability among high-end commercial payments for this code.