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CPT 89220: Assisted Sputum Induction Using Aerosol Mist
CPT code 89220 denotes an assisted sputum induction procedure in which an analyst uses an aerosol mist to help a patient produce a sputum sample. This code matters nationally because accurate sputum collection is central to respiratory disease diagnosis and public health surveillance, including tuberculosis and other infectious or inflammatory lung conditions. Proper coding ensures clinical procedures are documented and billed distinctly when the analyst performs the service as a standalone encounter.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context and service setting for 89220, an overview of common modifiers associated with specimen procedures, and guidance on where this code fits within laboratory and pulmonary service lines. The publication covers benchmarks and policy-relevant points where available and summarizes implications for billing workflows and documentation. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 89220 describes a procedure in which an analyst obtains a sputum specimen by using an aerosol mist to assist the patient in producing the sample. The service is intended to facilitate expectoration when spontaneous sputum production is inadequate and is billed only when the analyst performs this procedure as a separate, distinct service.
Service type: Assisted sputum induction
Typical site of service: Outpatient clinic or laboratory setting, including pulmonary function labs or diagnostic specimen collection areas where an analyst can supervise or perform aerosol-assisted sputum collection.