CPT code 83701 represents an advanced laboratory test for high-resolution fractionation and quantification of blood lipoproteins, including optional lipoprotein subclass analysis. Nationally, this code captures specialized lipid testing that informs cardiovascular risk assessment and treatment planning by providing more detailed lipoprotein particle information than standard lipid panels. The procedure is performed in clinical or hospital laboratories and is relevant to health plans, hospital laboratories, and clinical laboratories that manage cardiovascular diagnostic workflows.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical role, typical site of service, and the common payer landscape. The publication also provides benchmarks where available, summaries of relevant policy or coverage considerations, and clinical context on when high-resolution lipoprotein fractionation is used relative to standard lipid testing. Data not available in the input is noted where applicable.