A7021 HCPCS Level II code: Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit…
A7021 is the HCPCS code for “Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
A7021Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)
Short description: Suppl and access lung expan
HCPCS · United States
Medicare details
The indicators CMS publishes with A7021 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- DMEPOS fee schedule – Inexpensive & routinely purchased DME (price subject to floors and ceilings)
- Type of service
- Other medical items or services
- BETOS category
- Other DME
- Added
- Oct 1, 2024
Where A7021 sits
- 1A codesAmbulance, supplies and miscellaneous
- 2Active code A7021Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)
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 A7021 mean?
A7021 is the HCPCS code for “Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover A7021?
CMS lists A7021’s Medicare coverage as “Carrier judgment” and its pricing as “DMEPOS fee schedule – Inexpensive & routinely purchased DME (price subject to floors and ceilings)”. 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 A7021
All A codesA7014Filter, nondisposable, used with aerosol compressor or ultrasonic generatorA7015Aerosol mask, used with dme nebulizerA7016Dome and mouthpiece, used with small volume ultrasonic nebulizerA7017Nebulizer, durable, glass or autoclavable plastic, bottle type, not used with oxygenA7018Water, distilled, used with large volume nebulizer, 1000 mlA7020Interface for cough stimulating device, includes all components, replacement onlyA7023Mechanical allergen particle barrier/inhalation filter, cream, nasal, topicalA7025High frequency chest wall oscillation system vest, replacement for use with patient owned equipment, eachA7026High frequency chest wall oscillation system hose, replacement for use with patient owned equipment, eachA7027Combination oral/nasal mask, used with continuous positive airway pressure device, eachA7028Oral cushion for combination oral/nasal mask, replacement only, eachA7029Nasal pillows for combination oral/nasal mask, replacement only, pair