CPT code 86235 denotes a laboratory assay for antibodies to extractable nuclear antigens (ENA), detecting autoantibodies such as anti-RNP, anti-SS A/SS B, anti-Sm, and anti-Scl 70. This immunologic test is clinically important for diagnosing and characterizing systemic autoimmune connective tissue diseases, including lupus, Sjogren’s syndrome, mixed connective tissue disease, and systemic sclerosis. Nationally, ENA testing is a common component of rheumatologic workups and impacts diagnostic pathways, specialty referrals, and subsequent management decisions.

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 clinical purpose of the assay, typical sites of service, and the role of CPT code 86235 in laboratory billing. The publication outlines common billing considerations, payer coverage patterns, and benchmarking context where available. It also summarizes clinical context for ordering clinicians and coding staff, and highlights where data were not provided.

This summary equips administrators, laboratory directors, and coding professionals with a national-level view of CPT code 86235, its clinical relevance, and the types of information policymakers and payers consider when assessing coverage and reimbursement for ENA antibody testing.