Modifier | Description |
---|---|
N1 | Group 1 oxygen coverage criteria met |
N2 | Group 2 oxygen coverage criteria met |
N3 | Group 3 oxygen coverage criteria met |
NB | Nebulizer system, any type, fda-cleared for use with specific drug |
NR | New when rented (use the ‘nr’ modifier when dme which was new at the time of rental is subsequently purchased) |
NU | New equipment |