NB HCPCS Level II modifier: Nebulizer system, any type, fda-cleared for use with specific drug
NB is a HCPCS Level II modifier: “Nebulizer system, any type, fda-cleared for use with specific drug.” It adds this detail to the code it is reported with.
Official description
NBNebulizer system, any type, fda-cleared for use with specific drug
Short description: Drug specific nebulizer
HCPCS · United States
Medicare details
The indicators CMS publishes with NB in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 2011
Where NB sits
- 1GroupHCPCS modifiers
- 2Modifier NBNebulizer system, any type, fda-cleared for use with specific drug
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code NB mean?
NB is the HCPCS code for “Nebulizer system, any type, fda-cleared for use with specific drug” in CMS’s HCPCS Level II October 2026 release.
Where is NB in the HCPCS Level II list?
NB is listed under Modifiers.
Does Medicare cover NB?
CMS lists NB’s Medicare coverage as “Carrier judgment”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside NB
All modifiersMGThe order for this service does not have applicable appropriate use criteria in the qualified clinical decision support mechanism consulted by the ordering professionalMHUnknown if ordering professional consulted a clinical decision support mechanism for this service, related information was not provided to the furnishing professional or providerMSSix month maintenance and servicing fee for reasonable and necessary parts and labor which are not covered under any manufacturer or supplier warrantyN1Group 1 oxygen coverage criteria metN2Group 2 oxygen coverage criteria metN3Group 3 oxygen coverage criteria metNRNew when rented (use the 'nr' modifier when dme which was new at the time of rental is subsequently purchased)NUNew equipmentP1A normal healthy patientP2A patient with mild systemic diseaseP3A patient with severe systemic diseaseP4A patient with severe systemic disease that is a constant threat to life