Wiki 94664 / inhaler

[LouiseR1]

Our office gave a patient a pro air inhaler and had her take a few puffs-- she was very short of breath while doing an exercise stress test. I am reading a few things that say I may be able to bill the 94664 code, but the code lists "Demonstration/ and or evaluation of patient utilization of an aerosol generator, nebulizer, metered dose inhaler or IPPB device"
can I use this code? how would I bill this? is it even billable?

Any help is appreciated

thanks,
Louise CPC