L6660 HCPCS code: Upper extremity addition, heavy duty control cable
L6660 is the HCPCS Level II code for upper extremity addition, heavy duty control cable. The 2026 Medicare DMEPOS fee schedule pays $102.40 to $209.13 depending on the state. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 4 per day on DME suppliers. Medicare volume fell 14% from 2022 to 2024 (290 to 250 services). In 2024, 144 suppliers billed Medicare for L6660 (purchases), serving 162 beneficiaries. Its average fee ranks 6 of 50 L66 codes (family range $61.02–$4,614.32).
Code details
| Field | Value |
|---|---|
| Section | L codes — Orthotic and prosthetic procedures and devices |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 38 — DMEPOS: orthotics, prosthetics, prosthetic devices and vision services |
| BETOS category | D1F — Prosthetic and orthotic devices |
| Added | 1986-01-01 |
2026 Medicare DMEPOS fee schedule for L6660
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $102.40 | $209.13 | $149.83 | $112.37 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $195.53 | — |
| AL | — | $112.37 | — |
| AR | — | $126.38 | — |
| AZ | — | $149.83 | — |
| CA | — | $149.83 | — |
| CO | — | $115.07 | — |
| CT | — | $142.56 | — |
| DC | — | $112.37 | — |
| DE | — | $112.37 | — |
| FL | — | $112.37 | — |
| GA | — | $112.37 | — |
| HI | — | $209.13 | — |
| IA | — | $139.81 | — |
| ID | — | $129.80 | — |
| IL | — | $126.24 | — |
| IN | — | $126.24 | — |
| KS | — | $139.81 | — |
| KY | — | $112.37 | — |
| LA | — | $126.38 | — |
| MA | — | $142.56 | — |
| MD | — | $112.37 | — |
| ME | — | $142.56 | — |
| MI | — | $126.24 | — |
| MN | — | $126.24 | — |
| MO | — | $139.81 | — |
| MS | — | $112.37 | — |
| MT | — | $115.07 | — |
| NC | — | $112.37 | — |
| ND | — | $115.07 | — |
| NE | — | $139.81 | — |
| NH | — | $142.56 | — |
| NJ | — | $112.37 | — |
| NM | — | $126.38 | — |
| NV | — | $149.83 | — |
| NY | — | $112.37 | — |
| OH | — | $126.24 | — |
| OK | — | $126.38 | — |
| OR | — | $129.80 | — |
| PA | — | $112.37 | — |
| PR | — | $102.40 | — |
| RI | — | $142.56 | — |
| SC | — | $112.37 | — |
| SD | — | $115.07 | — |
| TN | — | $112.37 | — |
| TX | — | $126.38 | — |
| UT | — | $115.07 | — |
| VA | — | $112.37 | — |
| VI | — | $112.37 | — |
| VT | — | $142.56 | — |
| WA | — | $129.80 | — |
| WI | — | $126.24 | — |
| WV | — | $112.37 | — |
| WY | — | $115.07 | — |
How the L6660 fee compares
| Measure | Value |
|---|---|
| Rank among 50 L66 codes (lowest = 1) | 6 |
| Family fee range (average of state fees) | $61.02–$4,614.32 |
| Rural fee uplift | — |
Who bills L6660 (2024)
| Measure | Value |
|---|---|
| Suppliers billing rentals | — |
| Suppliers billing purchases | 144 |
| Referring clinicians | 159 |
| Medicare beneficiaries | 162 |
| States with claims | 2 |
| Year | Suppliers | Beneficiaries |
|---|---|---|
| 2022 | 177 | 203 |
| 2023 | 198 | 226 |
| 2024 | 144 | 162 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for L6660, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 290 | 203 | $107.89 | $78.50 |
| 2023 | 340 | 226 | $118.59 | $86.75 |
| 2024 | 250 | 162 | $123.40 | $89.38 |
States with the most L6660 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Texas | 22 | $93.79 |
| New York | 16 | $59.21 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| DME suppliers | 4 | Clinical: Data |
| outpatient hospital claims | 4 | Clinical: CMS Workgroup |
What changed for L6660
- 2026-01-01: Average state fee rose 2.0%: $124.87 to $127.37
- 1986-01-01: L6660 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code L6660?
L6660 is the HCPCS Level II code for upper extremity addition, heavy duty control cable. Short descriptor: "Heavy duty control cable".
How much does Medicare pay for L6660?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $102.40–$209.13. Rural fees can be higher.
Does Medicare cover L6660?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Did the Medicare fee for L6660 change in 2026?
The average non-rural state fee moved from $124.87 in 2025 to $127.37 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of L6660 can be billed per day?
4 on DME suppliers; 4 on outpatient hospital claims (NCCI medically unlikely edits).
Related L66 codes
- L6600 — Upper extremity additions, polycentric hinge, pair ($153.44–$409.35)
- L6605 — Upper extremity additions, single pivot hinge, pair ($133.09–$425.09)
- L6610 — Upper extremity additions, flexible metal hinge, pair ($122.80–$355.20)
- L6611 — Addition to upper extremity prosthesis, external powered, additional switch, any type ($494.85–$544.35)
- L6615 — Upper extremity addition, disconnect locking wrist unit ($122.80–$263.80)
- L6616 — Upper extremity addition, additional disconnect insert for locking wrist unit, each ($76.10–$105.88)
- L6620 — Upper extremity addition, flexion/extension wrist unit, with or without friction ($265.71–$513.87)
- L6621 — Upper extremity prosthesis addition, flexion/extension wrist with or without friction, for use with external powered terminal device ($2,748.98–$3,023.86)
- L6623 — Upper extremity addition, spring assisted rotational wrist unit with latch release ($142.76–$1,047.08)
- L6624 — Upper extremity addition, flexion/extension and rotation wrist unit ($4,526.27–$4,978.89)
- L6625 — Upper extremity addition, rotation wrist unit with cable lock ($286.30–$1,187.86)
- L6628 — Upper extremity addition, quick disconnect hook adapter, otto bock or equal ($66.65–$781.97)
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under L6660
- Watch L6660 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for L6660
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule 2026; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.