Summary & Overview
CPT 94011: Pediatric Forced Expiratory Flow Measurement, Infants and Toddlers
CPT code 94011 represents a specialized pediatric pulmonary function test that measures forced expiratory flow in infants and children up to age 2. This procedure is clinically significant for early detection and quantification of airway obstruction, monitoring of lung disease progression, and assessment of therapeutic response in very young patients who cannot perform standard spirometry. Nationally, the test is important for pediatric pulmonology, neonatology, and respiratory therapy services when objective measures of airway function are required in non-cooperative or preverbal children.
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 and typical care setting for the procedure, common modifiers used for billing, and which payers are commonly involved in reimbursement of pediatric pulmonary function testing. The publication highlights clinical context for use in infants and toddlers, clarifies the service type and usual site of service, and summarizes practical billing metadata relevant to revenue cycle and coding teams. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 94011 describes a pulmonary function test that measures forced expiratory flow in infants and children up to 2 years of age by provoking a forced exhalation. The procedure assesses airway function, identifies lung dysfunction or disease, and evaluates the effects of therapeutic interventions.
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Service type: Pediatric pulmonary function testing (forced expiratory flow measurement)
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Typical site of service: Pediatric pulmonary function laboratory or hospital outpatient respiratory testing area
Clinical & Coding Specifications
Clinical Context
A 10-month-old infant with recurrent wheeze and suspected reactive airways disease is referred to pediatric pulmonary function testing. The patient arrives to the pediatric pulmonary lab accompanied by a caregiver. The procedure is performed by a pediatric pulmonologist or certified respiratory therapist experienced in infant pulmonary function testing. After verification of identity, medical history (including recent respiratory infections, medications, and current oxygen requirement) and consent are documented. The infant is prepared for testing with calming measures and, if indicated, short-acting bronchodilator administration with documented timing. The provider uses an infant pulmonary function testing system (forced expiratory maneuvers under sedation or with induced tidal breathing techniques depending on institutional protocol) to measure forced expiratory flow and volumes. The test assesses airway function and response to therapy; results are reviewed immediately for quality and any need for repeat measurements. Findings inform diagnosis (e.g., bronchiolitis obliterans, early asthma), therapeutic decisions, and documentation is placed in the medical record for billing and follow-up.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the test required substantially greater time, effort, or technical difficulty than typical (document justification). |