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Large volume nebulizer, disposable, unfilled, used with aerosol compressor

HCPCS code

Name of the Procedure:

Large Volume Nebulizer, Disposable, Unfilled, Used with Aerosol Compressor (HCPCS: A7007)


A large volume nebulizer is a medical device used to deliver aerosolized medications to patients in the form of a mist, which can be inhaled directly into the lungs. The nebulizer is typically unfilled, meaning patients or healthcare providers must add the prescribed medication before use.


The large volume nebulizer is designed to administer medications that treat respiratory conditions, such as asthma, chronic obstructive pulmonary disease (COPD), and other pulmonary disorders. The goal is to provide efficient and direct delivery of medication to the airways, aiding in relief from symptoms like shortness of breath, wheezing, and chronic coughing.


  • Chronic Respiratory Conditions: Asthma, COPD, bronchitis, emphysema, cystic fibrosis.
  • Acute Respiratory Issues: Respiratory infections, severe allergic reactions.
  • Symptoms: Persistent coughing, difficulty breathing, wheezing.


  • Patients should follow specific guidelines provided by their healthcare provider regarding medication usage.
  • No special fasting or dietary restrictions are typically required.
  • Patients should inform their healthcare provider of all medications and supplements they are currently taking.

Procedure Description

  1. Filling the Nebulizer: The nebulizer is filled with the prescribed medication.
  2. Connecting to the Compressor: Attach the nebulizer to an aerosol compressor.
  3. Inhalation: The device turns the liquid medication into a fine mist. The patient inhales the mist through a mouthpiece or mask.
  4. Duration: The inhalation process usually lasts between 5-15 minutes.
  5. Post-Use: After each use, the nebulizer should be cleaned and dried thoroughly.


The overall setup and inhalation process typically take around 15 to 20 minutes.


This procedure can be performed at home, in an outpatient clinic, or a hospital setting depending on the patient's specific needs and the healthcare provider's recommendations.


Usually, patients can conduct this procedure on their own after proper training. Initially, a healthcare provider, such as a nurse or respiratory therapist, may assist and ensure correct usage.

Risks and Complications

  • Common Risks: Throat irritation, dry mouth, dizziness.
  • Rare Risks: Allergic reactions to medication, respiratory infections if the nebulizer is not properly cleaned.
  • Complication Management: Immediate consultation with a healthcare provider is recommended if severe side effects occur.


  • Symptom Relief: Improved breathing, reduced wheezing and coughing.
  • Direct Medication Delivery: More efficient than oral or injected medications for certain pulmonary conditions.
  • Quick Results: Patients may start to feel relief within minutes after a treatment session.


  • Post-Procedure Care: Clean and dry the nebulizer after each use.
  • Recovery Time: No downtime is typically required; patients can resume regular activities immediately.
  • Follow-up: Regular check-ups with a healthcare provider to monitor the condition and adjust treatment as necessary.


  • Inhalers: Portable and convenient but require proper technique.
  • Oral Medications: Simpler administration but slower onset and potential systemic side effects.
  • Injectables: Faster response for severe conditions but more invasive.

Patient Experience

  • During Procedure: Patients may feel a cool mist and need to breathe slowly and deeply.
  • After Procedure: Patients might feel immediate relief from symptoms. Any discomfort, such as throat irritation, is usually mild and temporary.
  • Pain Management: The procedure is generally painless. Comfort measures include using a mouthpiece or mask that fits well without causing irritation.

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