Summary & Overview
CPT 83718: Direct High-Density Lipoprotein (HDL) Cholesterol Measurement
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.
Billing Code Overview
CPT code 83718 represents a laboratory assay in which a lab analyst performs a test to directly measure high-density lipoprotein (HDL) cholesterol in a patient specimen. This service is a clinical laboratory test that provides a direct quantitative measurement of HDL cholesterol concentration.
Service type: Laboratory test — clinical chemistry
Typical site of service: Clinical laboratory or hospital laboratory
Clinical & Coding Specifications
Clinical Context
A primary care clinician orders a direct high-density lipoprotein (HDL) cholesterol assay (83718) for an adult patient during a preventive care visit and metabolic risk assessment. The patient is a 52-year-old male with a history of hypertension and a family history of premature coronary artery disease. Fasting lipid panel components are requested to stratify cardiovascular risk and guide therapy. A phlebotomy technician collects a serum sample, labels it, and sends it to the clinical laboratory. The lab analyst performs the direct HDL cholesterol measurement using an enzymatic/precipitation or automated homogeneous assay, documents results in the laboratory information system, and releases the final report to the ordering provider. Typical workflow steps: order entry in electronic health record, specimen collection and transport to the lab, analytical run and quality control, result verification by the laboratory professional, and electronic reporting to the clinician for incorporation into the patient’s cardiovascular risk assessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When reporting only the professional interpretation component, if applicable in laboratory-professional split billing arrangements. |