CPT code 86708 describes a laboratory immunoassay that detects total antibodies to hepatitis A virus in a patient’s serum. This serologic test is used to determine prior exposure or immune response to hepatitis A and is widely used in diagnostic workflows for suspected infection, immunity screening, and public health surveillance. Nationally, accurate coding of this test matters for laboratory reporting, epidemiologic tracking, and appropriate payer reimbursement for infectious disease diagnostics.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for the test, typical sites of service where the assay is performed, and common billing considerations tied to test classification and lab service lines. When present, benchmarking and policy updates affecting laboratory diagnostics are summarized to clarify payer coverage patterns and coding practice.

This publication provides concise guidance on the clinical intent of the code, operational settings where the test is delivered, and the types of information clinicians and billing teams should expect to find in payer policies and lab formularies. Data not supplied in the input (such as specific payer reimbursement rates, associated taxonomies, or ICD-10 linkage) are identified as unavailable.