A6550 — Wound care set, for negative pressure wound therapy electrical pump, includes all supplies and accessories
HCPCS Level II A-code · short descriptor: “Neg pres wound ther drsg set”
- 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
- Supplies
- 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.
A6550 Medicare fee schedule (April 2026)
Base (no modifier) Supplies
Medicare allowable ranges from $31.08 to $37.54 depending on state and rural status.
| State | Non-rural | Rural |
|---|---|---|
| AK | $33.70 | — |
| AL | $31.35 | $33.70 |
| AR | $31.35 | $33.70 |
| AZ | $31.35 | $33.70 |
| CA | $31.31 | $33.70 |
| CO | $31.08 | $33.70 |
| CT | $31.67 | $33.70 |
| DC | $31.76 | $33.70 |
| DE | $31.76 | $33.70 |
| FL | $31.35 | $33.70 |
| GA | $31.35 | $33.70 |
| HI | $33.70 | — |
| IA | $31.78 | $33.70 |
| ID | $31.08 | $33.70 |
| IL | $31.92 | $33.70 |
| IN | $31.92 | $33.70 |
| KS | $31.78 | $33.70 |
| KY | $31.35 | $33.70 |
| LA | $31.35 | $33.70 |
| MA | $31.67 | $33.70 |
| MD | $31.76 | $33.70 |
| ME | $31.67 | $33.70 |
| MI | $31.92 | $33.70 |
| MN | $31.78 | $33.70 |
| MO | $31.78 | $33.70 |
| MS | $31.35 | $33.70 |
| MT | $31.08 | $33.70 |
| NC | $31.35 | $33.70 |
| ND | $31.78 | $33.70 |
| NE | $31.78 | $33.70 |
| NH | $31.67 | $33.70 |
| NJ | $31.76 | $33.70 |
| NM | $31.35 | $33.70 |
| NV | $31.31 | $33.70 |
| NY | $31.76 | $33.70 |
| OH | $31.92 | $33.70 |
| OK | $31.35 | $33.70 |
| OR | $31.31 | $33.70 |
| PA | $31.76 | $33.70 |
| PR | $37.54 | — |
| RI | $31.67 | $33.70 |
| SC | $31.35 | $33.70 |
| SD | $31.78 | $33.70 |
| TN | $31.35 | $33.70 |
| TX | $31.35 | $33.70 |
| UT | $31.08 | $33.70 |
| VA | $31.35 | $33.70 |
| VI | $33.70 | — |
| VT | $31.67 | $33.70 |
| WA | $31.31 | $33.70 |
| WI | $31.92 | $33.70 |
| WV | $31.35 | $33.70 |
| WY | $31.08 | $33.70 |
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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