HCPCS 'N' Modifiers (6)

CodeDescription
N1Group 1 oxygen coverage criteria met
N2Group 2 oxygen coverage criteria met
N3Group 3 oxygen coverage criteria met
NBNebulizer system, any type, fda-cleared for use with specific drug
NRNew when rented (use the 'nr' modifier when dme which was new at the time of rental is subsequently purchased)
NUNew equipment