A7021 — Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)
HCPCS Level II A-code · short descriptor: “Suppl and access lung expan”
- Code system
- HCPCS Level II
- Family
- A — Medical & surgical supplies, ambulance
- Medicare coverage status
- Carrier judgment — coverage decided by the DME MAC
- DMEPOS payment category
- Inexpensive or routinely purchased
- Prior authorization
- Not on Medicare required-PA list
- Status
- Active (April 2026 HCPCS)
Prior authorization
Not on the Medicare required-PA list as of the January 13, 2026 update (74 items). Medicare Advantage and commercial plans set their own prior-authorization rules for this code — verify per plan before delivery.
A7021 Medicare fee schedule (April 2026)
NU — New purchase Inexpensive or routinely purchased
Medicare allowable ranges from $135.58 to $255.06 depending on state and rural status.
| State | Non-rural | Rural |
|---|---|---|
| AK | $224.12 | — |
| AL | $136.37 | — |
| AR | $136.37 | — |
| AZ | $135.58 | — |
| CA | $136.30 | — |
| CO | $139.65 | — |
| CT | $144.70 | — |
| DC | $137.82 | — |
| DE | $137.82 | — |
| FL | $136.37 | — |
| GA | $136.37 | — |
| HI | $226.37 | — |
| IA | $136.39 | — |
| ID | $139.65 | — |
| IL | $137.05 | — |
| IN | $137.05 | — |
| KS | $136.39 | — |
| KY | $136.37 | — |
| LA | $136.37 | — |
| MA | $144.70 | — |
| MD | $137.82 | — |
| ME | $144.70 | — |
| MI | $137.05 | — |
| MN | $136.39 | — |
| MO | $136.39 | — |
| MS | $136.37 | — |
| MT | $139.65 | — |
| NC | $136.37 | — |
| ND | $136.39 | — |
| NE | $136.39 | — |
| NH | $144.70 | — |
| NJ | $137.82 | — |
| NM | $135.58 | — |
| NV | $136.30 | — |
| NY | $137.82 | — |
| OH | $137.05 | — |
| OK | $135.58 | — |
| OR | $136.30 | — |
| PA | $137.82 | — |
| PR | $255.06 | — |
| RI | $144.70 | — |
| SC | $136.37 | — |
| SD | $136.39 | — |
| TN | $136.37 | — |
| TX | $135.58 | — |
| UT | $139.65 | — |
| VA | $136.37 | — |
| VI | $228.25 | — |
| VT | $144.70 | — |
| WA | $136.30 | — |
| WI | $137.05 | — |
| WV | $136.37 | — |
| WY | $139.65 | — |
Amounts are the Medicare DMEPOS fee-schedule allowables effective April 2026.
Medicare typically pays 80% of the allowable after the Part B deductible; the patient owes 20%.
A 2% sequestration reduction applies to the Medicare share. Former competitive-bidding-area
adjustments and non-continental rates can differ — verify with your DME MAC.
Common denial codes to watch
Related A-codes
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