L5666 — Addition to lower extremity, below knee, cuff suspension
HCPCS Level II L-code · short descriptor: “Below knee cuff suspension”
- Code system
- HCPCS Level II
- Family
- L — Orthotics & prosthetics
- Medicare coverage status
- Carrier judgment — coverage decided by the DME MAC
- DMEPOS payment category
- Prosthetics & orthotics
- 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.
L5666 Medicare fee schedule (April 2026)
Base (no modifier) Prosthetics & orthotics
Medicare allowable ranges from $85.69 to $132.57 depending on state and rural status.
Former-CBA payment limits: ceiling $114.26 · floor $85.69
| State | Non-rural | Rural |
|---|---|---|
| AK | $123.96 | — |
| AL | $85.69 | — |
| AR | $114.26 | — |
| AZ | $114.26 | — |
| CA | $114.26 | — |
| CO | $85.69 | — |
| CT | $104.60 | — |
| DC | $93.15 | — |
| DE | $93.15 | — |
| FL | $85.69 | — |
| GA | $85.69 | — |
| HI | $132.57 | — |
| IA | $91.37 | — |
| ID | $86.96 | — |
| IL | $94.40 | — |
| IN | $94.40 | — |
| KS | $91.37 | — |
| KY | $85.69 | — |
| LA | $114.26 | — |
| MA | $104.60 | — |
| MD | $93.15 | — |
| ME | $104.60 | — |
| MI | $94.40 | — |
| MN | $94.40 | — |
| MO | $91.37 | — |
| MS | $85.69 | — |
| MT | $85.69 | — |
| NC | $85.69 | — |
| ND | $85.69 | — |
| NE | $91.37 | — |
| NH | $104.60 | — |
| NJ | $96.28 | — |
| NM | $114.26 | — |
| NV | $114.26 | — |
| NY | $96.28 | — |
| OH | $94.40 | — |
| OK | $114.26 | — |
| OR | $86.96 | — |
| PA | $93.15 | — |
| PR | $103.54 | — |
| RI | $104.60 | — |
| SC | $85.69 | — |
| SD | $85.69 | — |
| TN | $85.69 | — |
| TX | $114.26 | — |
| UT | $85.69 | — |
| VA | $93.15 | — |
| VI | $96.28 | — |
| VT | $104.60 | — |
| WA | $86.96 | — |
| WI | $94.40 | — |
| WV | $93.15 | — |
| WY | $85.69 | — |
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 L-codes
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