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CPT 37799: Unlisted Vascular Surgery Procedure
CPT code 37799 denotes an unlisted vascular surgery procedure used when no specific procedural code exists. As a catch-all for atypical or novel vascular surgeries, it plays a critical administrative role in ensuring services without a precise CPT descriptor can be billed and reviewed. Nationally, unlisted procedure codes like 37799 influence claim adjudication workflows, medical necessity reviews, and documentation requirements because they often require supplemental operative reports and rationale for the service billed.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of when 37799 is used clinically, comparisons to related vascular procedure codes, guidance on documentation expectations associated with unlisted codes, and common payer considerations for claim review and reimbursement determination. The content highlights typical clinical contexts prompting use of an unlisted vascular surgery code and summarizes implications for coding and billing operations.
The publication provides benchmarks and policy context relevant to unlisted vascular procedures, explains clinical scenarios that commonly trigger use of 37799, and outlines what payers typically require for review. Data not available in the input is identified explicitly where applicable.
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Billing Code Overview
CPT code 37799 is an unlisted vascular surgery procedure code used to report a vascular surgery intervention for which no specific CPT code exists. The code captures a variety of procedures performed by vascular surgery specialists when an established CPT descriptor is not applicable.
Service Type: Vascular surgery (unlisted procedure)
Typical Site of Service: Hospital inpatient or outpatient surgical settings, and ambulatory surgical centers
National Reimbursement Benchmarks
Commercial reimbursement for CPT 37799 centers near BUCA’s average commercial rate of $1,982.20, with notable variation among large national payers. Blue Cross Blue Shield shows the broadest dispersion (P75 $1,427.80 minus P25 $109.40 = $1,318.40), reflecting a wide mix of low and high contract levels. Aetna also has substantial spread (P75 $2,022.40 minus P25 $446.90 = $1,575.50) driven by a high maximum of $7,233.20, while Cigna’s values are tightly clustered around a single principal level (P75 $1,358.00 minus P25 $1,358.00 = $0.00). UnitedHealth Group’s dispersion is moderate (P75 $2,547.90 minus P25 $600.00 = $1,947.90).
These patterns indicate that price certainty is strongest with Cigna, where median and quartiles coincide at $1,358.00, and weakest with Aetna and UnitedHealth Group by range magnitude. Blue Cross Blue Shield shows extreme outliers (minimum $0 and maximum $60,000) that widen its overall profile despite a median of $620.00. BUCA’s mean of $1,982.20 provides an industry-average anchor point against which these payer-specific dispersions can be compared.