AMA CPT® Assistant - 1998 Issue 5 (May)

Medicine, 94640, 94664 (Q&A) (May 1998)

May 1998 page 10b Coding Consultation Medicine, 94640, 94664 (Q&A) Question What is the difference between inhalation codes 94640 and 94664? AMA Comment Code 94640, Nonpressurized inhalation treatment for acute airway obstruction, is reported for an inhalation treatment for an acute airway obstruction such as status asthmaticus. Code 94664, Aerosol or vapor inhalations for sputum mobilization, bronchodilation or sputum induction for diagnostic purposes; initial demonstration and/or evaluation, is intended that the aerosol or vapor inhalations for sputum mobilization, aerosol or vapor inhalations for bronchodilation, or aerosol or vapor inhalations for sputum induction are performed for diagnostic purposes, with...

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