A4593 — Neuromodulation stimulator system, adjunct to rehabilitation therapy regime, controller
HCPCS Level II A-code · short descriptor: “Neuromod sti sys adj rehab”
- 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
- Capped rental
- 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.
A4593 Medicare fee schedule (April 2026)
RR — Monthly rental Capped rental
Medicare allowable ranges from $44.89 to $75.93 depending on state and rural status.
| State | Non-rural | Rural |
|---|---|---|
| AK | $50.64 | — |
| AL | $52.81 | — |
| AR | $51.86 | — |
| AZ | $47.14 | — |
| CA | $44.89 | — |
| CO | $52.38 | — |
| CT | $52.81 | — |
| DC | $48.31 | — |
| DE | $52.81 | — |
| FL | $52.81 | — |
| GA | $52.81 | — |
| HI | $75.93 | — |
| IA | $50.32 | — |
| ID | $52.81 | — |
| IL | $49.11 | — |
| IN | $51.33 | — |
| KS | $51.70 | — |
| KY | $47.88 | — |
| LA | $46.71 | — |
| MA | $52.81 | — |
| MD | $52.81 | — |
| ME | $52.81 | — |
| MI | $52.81 | — |
| MN | $50.80 | — |
| MO | $51.70 | — |
| MS | $52.81 | — |
| MT | $52.81 | — |
| NC | $52.81 | — |
| ND | $52.81 | — |
| NE | $51.70 | — |
| NH | $52.81 | — |
| NJ | $52.81 | — |
| NM | $52.81 | — |
| NV | $50.37 | — |
| NY | $48.49 | — |
| OH | $52.28 | — |
| OK | $49.55 | — |
| OR | $48.64 | — |
| PA | $44.89 | — |
| PR | $50.85 | — |
| RI | $52.81 | — |
| SC | $52.81 | — |
| SD | $52.81 | — |
| TN | $51.45 | — |
| TX | $50.99 | — |
| UT | $52.81 | — |
| VA | $49.37 | — |
| VI | $48.49 | — |
| VT | $52.81 | — |
| WA | $52.81 | — |
| WI | $52.81 | — |
| WV | $52.36 | — |
| WY | $52.81 | — |
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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