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CPT 82785: Quantitative Immunoglobulin E Assay
CPT code 82785 denotes a clinical laboratory test that quantifies immunoglobulin E (IgE) in a patient specimen. Nationally, measurement of IgE supports diagnosis and management of allergic disorders and certain immune conditions; accurate laboratory coding and billing for this service affect claims processing, clinical workflows, and payment consistency across payers. This code represents the technical component of an IgE assay performed by laboratory personnel and is typically billed for laboratory-based analysis rather than the clinical interpretation.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of payer coverage patterns and billing considerations for CPT code 82785, including common sites of service and the role of the test in clinical care. The publication outlines benchmarks for utilization where available, summarizes relevant policy and coding considerations, and provides clinical context for when quantitative IgE testing is used. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 82785 describes a laboratory technical procedure in which a lab analyst measures the quantity of immunoglobulin E (IgE) in a clinical specimen. This test is a clinical laboratory service used to assess IgE levels, often in the context of allergic sensitization or immune system evaluation.
Service Type: Clinical laboratory testing — quantitative immunoassay for immunoglobulin E
Typical Site of Service: Clinical laboratory or hospital laboratory (specimen collected in outpatient clinic or other ambulatory settings; analysis performed in a certified laboratory)