Summary & Overview
HCPCS G0239: Group Respiratory Therapeutic Procedures
HCPCS Level II code G0239 represents group therapeutic procedures aimed at improving respiratory function or increasing the strength and endurance of respiratory muscles, and it includes monitoring as part of the service. This code is used for pulmonary rehabilitation and respiratory therapy delivered to two or more patients concurrently, typically in outpatient hospital or clinic settings. Nationally, group-based respiratory therapy supports management of chronic respiratory conditions, can increase access to therapy through shared sessions, and is relevant to payers focused on chronic disease management and post-acute care.
Key payers in scope include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a concise overview of the clinical context for G0239, common billing relationships with related respiratory and pulmonary procedure codes, and administrative considerations relevant to outpatient delivery. Readers will find benchmarks for typical sites of service, an outline of associated clinical indications that commonly map to this code, and practical notes on typical payer coverage patterns and documentation elements required for group pulmonary rehabilitation services. Where specific data elements were not provided in the input, the text notes, "Data not available in the input." The focus is informational: clarifying the clinical purpose of G0239, situating it among related respiratory services, and summarizing payer relevance for national audiences.
Billing Code Overview
HCPCS Level II code G0239 describes therapeutic procedures to improve respiratory function or increase strength or endurance of respiratory muscles, provided to two or more individuals and includes monitoring. This service is categorized under pulmonary rehabilitation / respiratory therapy and is typically delivered in an outpatient hospital or clinic setting, such as a comprehensive outpatient rehabilitation facility or similar outpatient environment.
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with chronic obstructive pulmonary disease (COPD) experiences increased dyspnea and reduced exercise tolerance following a recent exacerbation. The outpatient pulmonary rehabilitation team schedules supervised respiratory muscle training sessions in a clinic or outpatient hospital setting. During each visit, two or more clinicians (for example, a pulmonary disease physician directing care and a respiratory therapist delivering the therapy) provide therapeutic procedures to improve respiratory function and to increase respiratory muscle strength and endurance, with continuous monitoring of vital signs and oxygen saturation. The workflow includes intake assessment, monitored exercise and breathing exercises, adjustment of oxygen or inhaled therapies as needed, documentation of session time and personnel, and discharge planning for home exercise.
Coding Specifications
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HCPCS Level II code
G0239: Therapeutic procedures to improve respiratory function or increase strength or endurance of respiratory muscles, two or more individuals (includes monitoring). -
Common Modifiers
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59- Distinct Procedural Service: Use when the service is separate and independent from other services performed on the same day. Applies whenG0239is separately identifiable from other procedures. -
76- Repeat Procedure by Same Physician: Use when the exact same procedureG0239is repeated by the same physician or provider on the same day. -
Associated Provider Taxonomies
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207RP1001X- Pulmonary Disease Physician: Specialist in pulmonary medicine who may order, supervise, or interpret pulmonary rehabilitation services. -
227900000X- Respiratory Therapist, Certified: Clinician who provides respiratory treatments and monitors patient performance duringG0239sessions. -
2278C0205X- Critical Care Respiratory Therapist: Respiratory clinician with critical care specialization who may participate in complex cases or monitoring duringG0239.
Related Diagnoses
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J44.1- Chronic obstructive pulmonary disease with (acute) exacerbation- Relevance: COPD exacerbations cause increased dyspnea and decreased respiratory muscle endurance; indications for supervised respiratory therapy such as
G0239.
- Relevance: COPD exacerbations cause increased dyspnea and decreased respiratory muscle endurance; indications for supervised respiratory therapy such as
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J45.909- Unspecified asthma, uncomplicated- Relevance: Asthma with ongoing symptoms may benefit from respiratory training and monitoring provided by
G0239to improve breathing mechanics.
- Relevance: Asthma with ongoing symptoms may benefit from respiratory training and monitoring provided by
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J96.10- Chronic respiratory failure, unspecified whether with hypoxia or hypercapnia- Relevance: Patients with chronic respiratory failure often require respiratory muscle strengthening and close monitoring during therapeutic sessions billed with
G0239.
- Relevance: Patients with chronic respiratory failure often require respiratory muscle strengthening and close monitoring during therapeutic sessions billed with
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R06.02- Shortness of breath- Relevance: Symptom-driven indication for respiratory rehabilitation interventions such as those described by
G0239.
- Relevance: Symptom-driven indication for respiratory rehabilitation interventions such as those described by
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J98.01- Acute bronchospasm- Relevance: Acute bronchospasm can prompt monitored therapeutic interventions and respiratory training included in
G0239.
- Relevance: Acute bronchospasm can prompt monitored therapeutic interventions and respiratory training included in
Related Codes
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94640- Pressurized or non-pressurized inhalation treatment for acute airway obstruction- Clinical relation: Provides acute bronchodilator delivery that may be used immediately before or during respiratory therapy sessions for bronchospasm management.
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94010- Spirometry, including graphic record- Clinical relation: Baseline and follow-up spirometry assess pulmonary function and help quantify response to respiratory muscle training performed under
G0239.
- Clinical relation: Baseline and follow-up spirometry assess pulmonary function and help quantify response to respiratory muscle training performed under
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94664- Demonstration and/or evaluation of patient utilization of an aerosol generator- Clinical relation: Education on inhaler or nebulizer technique commonly accompanies pulmonary rehabilitation and may be performed during the same visit as
G0239.
- Clinical relation: Education on inhaler or nebulizer technique commonly accompanies pulmonary rehabilitation and may be performed during the same visit as
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94760- Noninvasive ear or pulse oximetry for oxygen saturation; single determination- Clinical relation: Monitoring oxygen saturation during
G0239sessions is integral to safety and may be billed separately when a distinct oximetry service is performed.
- Clinical relation: Monitoring oxygen saturation during
-
Common combinations and alternatives:
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94640,94664, and94760are commonly used together withG0239in the same pulmonary rehabilitation visit for acute treatment, patient education, and monitoring. -
94010is commonly used as a baseline or outcome measure in conjunction withG0239but is a distinct diagnostic procedure.
National Reimbursement Benchmarks
Medicare's national mean rate for HCPCS Level II code G0239 is $15.05, which sits below the BUCA (average commercial) mean of $16.65 but above Aetna's mean of $10.71. UnitedHealthcare and Blue Cross Blue Shield report the highest national mean rates at $20.38 and $19.75, respectively, while Aetna reports the lowest mean.
Rate dispersion (P75 − P25) varies across payers. Blue Cross Blue Shield and UnitedHealthcare show wider dispersion (9.5 and 11, respectively), indicating broader variability around the median. Cigna Health is the tightest with no dispersion (P75 and P25 both 12). Aetna and BUCA show moderate dispersion (6 and 7.56, respectively), and Medicare displays a narrow spread of 2. The table and chart below present the full breakdown.
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