A7023 — Mechanical allergen particle barrier/inhalation filter, cream, nasal, topical
A7023 is a HCPCS Level II code for mechanical allergen particle barrier/inhalation filter, cream, nasal, topical. It belongs to the Transportation, Medical & Surgical Supplies, Administrative section. Medicare does not pay it — see the coverage note below before you bill it.
Medicare coverage: Non-covered by statute
Excluded from coverage by the Social Security Act itself, not by a policy decision. No documentation and no appeal changes this one — an ABN is the relevant conversation.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusN
Non-covered service. Medicare does not cover it.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for A7023
- Long descriptor
- Mechanical allergen particle barrier/inhalation filter, cream, nasal, topical
- Short descriptor
- Mech allergen parti barrier
- Added
- January 1, 2024
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to A7023
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If A7023 is not quite right, the correct code is very often within a few positions of it.
- A7013Filter, disposable, used with aerosol compressor or ultrasonic generator
- A7014Filter, nondisposable, used with aerosol compressor or ultrasonic generator
- A7015Aerosol mask, used with dme nebulizer
- A7016Dome and mouthpiece, used with small volume ultrasonic nebulizer
- A7017Nebulizer, durable, glass or autoclavable plastic, bottle type, not used with oxygen
- A7018Water, distilled, used with large volume nebulizer, 1000 ml
- A7020Interface for cough stimulating device, includes all components, replacement only
- A7021Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)
- A7025High frequency chest wall oscillation system vest, replacement for use with patient owned equipment, each
- A7026High frequency chest wall oscillation system hose, replacement for use with patient owned equipment, each
- A7027Combination oral/nasal mask, used with continuous positive airway pressure device, each
- A7028Oral cushion for combination oral/nasal mask, replacement only, each
- A7029Nasal pillows for combination oral/nasal mask, replacement only, pair
- A7030Full face mask used with positive airway pressure device, each
- A7031Face mask interface, replacement for full face mask, each
- A7032Cushion for use on nasal mask interface, replacement only, each
Questions about A7023
What is HCPCS code A7023?
A7023 is a HCPCS Level II code for mechanical allergen particle barrier/inhalation filter, cream, nasal, topical. It sits in the Transportation, Medical & Surgical Supplies, Administrative section.
Does Medicare cover A7023?
The CMS HCPCS file marks A7023 as "Non-covered by statute". Excluded from coverage by the Social Security Act itself, not by a policy decision. No documentation and no appeal changes this one — an ABN is the relevant conversation.
How is A7023 paid under the physician fee schedule?
A7023 carries PFS status code N. Non-covered service. Medicare does not cover it.