CPT code 94070 designates a bronchial provocation test with serial spirometry, a diagnostic procedure that intentionally induces bronchospasm to measure airway hyperresponsiveness. This test is important nationally for diagnosing and characterizing asthma and other reactive airway disorders when baseline spirometry is inconclusive. It informs treatment decisions, severity assessment, and eligibility for certain therapies.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for use of CPT code 94070, common settings where the procedure is performed, and the implications for billing and payer engagement. The publication outlines typical benchmarks, relevant policy considerations affecting coverage and prior authorization, and operational factors practices should consider when ordering or performing bronchial provocation testing. Where specific payer policies vary, summaries of typical coverage approaches are provided. Data not available in the input where applicable will be noted.