CPT code 83718 denotes a direct laboratory measurement of high-density lipoprotein (HDL) cholesterol performed by a lab analyst. HDL measurement is a common component of lipid panels and cardiovascular risk assessment; direct HDL assays are used when precision or assay-specific considerations make calculation methods inappropriate. This code matters nationally because HDL levels inform clinical decisions across primary care, cardiology, and preventive medicine, and laboratory coding drives billing, quality measurement, and public health surveillance.

Key payers considered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing on the clinical context and service settings where CPT code 83718 applies, plus coverage and billing implications as addressed by major payers. The publication outlines benchmarks for utilization and pricing, highlights relevant policy updates affecting laboratory billing, and summarizes coding nuances that affect claims processing and payer reimbursement strategies.

This summary is intended for clinical laboratory managers, revenue cycle professionals, policy analysts, and clinicians seeking a national overview of the code's clinical role and payer landscape.