Summary & Overview
CPT 94619: Exercise‑Induced Bronchospasm Test
CPT code 94619 represents exercise‑induced bronchospasm testing — a diagnostic pulmonary function procedure that measures lung response to physical exertion to identify or assess exercise‑triggered airway obstruction. Nationally, this code is relevant for respiratory clinicians, pulmonary function labs, and payers because it supports objective diagnosis and management of exercise‑related bronchospasm and contributes to appropriate care planning and utilization tracking. Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find a concise overview of clinical intent and typical sites of service, followed by benchmarks and payer coverage patterns where available. The publication summarizes billing and coding context for facilities and clinics that perform diagnostic pulmonary function testing, highlights common modifier usage, and outlines the clinical situations in which exercise challenge testing is clinically relevant. Policy and reimbursement updates affecting diagnostic pulmonary procedures are reviewed to inform revenue cycle and compliance teams. Clinical context explains when exercise testing is ordered versus other bronchoprovocation methods. Data not available in the input is indicated where applicable.
Billing Code Overview
CPT code 94619 describes a test to assess exercise‑induced bronchospasm by measuring lung function before and after exercise. The procedure evaluates airflow limitation triggered by physical exertion to aid in the diagnosis and assessment of certain obstructive lung disorders.
Service type: Diagnostic pulmonary function testing / bronchoprovocation testing
Typical site of service: Hospital outpatient department, pulmonary function laboratory, or ambulatory clinic
Clinical & Coding Specifications
Clinical Context
A 16-year-old adolescent athlete presents to an outpatient pulmonary function laboratory with exertional cough, shortness of breath and chest tightness noted during and after running. Prior baseline spirometry shows normal resting lung function. The pulmonologist orders an exercise challenge test to evaluate for exercise-induced bronchospasm and to confirm asthma-related exertional symptoms. On the day of testing the patient is screened for contraindications, baseline spirometry is obtained, the patient performs standardized treadmill exercise (targeting >80% predicted maximum heart rate for 6–8 minutes) or a cycle ergometer protocol under respiratory therapist supervision, and serial post-exercise spirometry measures are taken at set intervals (e.g., 5, 10, 15, 30 minutes). A ≥10–15% fall in FEV1 from baseline supports a diagnosis of exercise-induced bronchospasm. Results are documented in the medical record and communicated to the referring provider with recommendations for further management as appropriate.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normal, no unusual circumstances | Use when services are performed as billed without deviation from standard practice. |
22 |