May we bill G codes to bill for the demonstration of a nebulizer or an inhaler device?


Do not use the G codes to bill for a demonstration of a nebulizer or inhaler device or for demonstrating chest percussion techniques. The code 94664 is to be reported for demonstration and evaluation of an aerosol generator, nebulizer, metered dose inhaler, or IPPB device.

This question was answered in our Coding Essentials for RT/Pulmonary Function. For more hot topics relating to respiratory services, please visit our store or call us at 1.800.252.1578, ext. 2.


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