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94640

Pressurized or Nonpressurized Inhalation Treatment

Code Description

CPT code 94640 is used to report inhalation treatment for acute airway obstruction or sputum induction using aerosolized medication. The service is commonly delivered through a nebulizer and helps improve airflow by delivering medication directly into the lungs.

This treatment is frequently performed in physician offices, urgent care clinics, emergency departments, and outpatient facilities.

When to Use 94640

Common examples include:

asthma attacks
wheezing
bronchospasm
COPD exacerbations
acute breathing difficulties

Documentation Requirements

Documentation should include:

diagnosis requiring treatment
medication administered
delivery method used
patient response to therapy
medical necessity

Common Billing Mistakes

Common billing mistakes include:

missing medication documentation
insufficient treatment notes
reporting services not performed
incorrect respiratory therapy coding
lack of documented medical necessity

Related CPT Codes

94664

Demonstration of Inhaler Use

94010

Spirometry Testing

94760

Pulse Oximetry

FAQ

Can CPT 94640 be reported more than once on the same day?

In some cases, multiple treatments may be reported when medically necessary and properly documented.

What medications are commonly administered with CPT 94640?

Bronchodilators such as albuterol are among the most frequently used medications during inhalation therapy.

Is CPT 94640 only used for asthma patients?

No. The code may be reported for a variety of respiratory conditions, including COPD and acute bronchospasm.

Does CPT 94640 include the medication being administered?

No. The administration service is reported separately from many medications, which may require additional HCPCS coding when applicable.

Procedure Type

Inhalation Therapy

Body Area

Technique

Respiratory System

Nebulizer Treatment