L6600 HCPCS code: Upper extremity additions, polycentric hinge, pair
L6600 is the HCPCS Level II code for upper extremity additions, polycentric hinge, pair. The 2026 Medicare DMEPOS fee schedule pays $153.44 to $409.35 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 2 per day on DME suppliers. Medicare volume fell 53% from 2022 to 2024 (34 to 16 services). In 2024, 4 suppliers billed Medicare for L6600 (purchases), serving 13 beneficiaries. Its average fee ranks 16 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 | 1982-01-01 |
| Last action effective | 1996-01-01 |
2026 Medicare DMEPOS fee schedule for L6600
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $153.44 | $409.35 | $306.19 | $229.64 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $382.81 | — |
| AL | — | $229.64 | — |
| AR | — | $306.19 | — |
| AZ | — | $306.19 | — |
| CA | — | $306.19 | — |
| CO | — | $229.64 | — |
| CT | — | $229.64 | — |
| DC | — | $243.26 | — |
| DE | — | $243.26 | — |
| FL | — | $229.64 | — |
| GA | — | $229.64 | — |
| HI | — | $409.35 | — |
| IA | — | $231.09 | — |
| ID | — | $248.83 | — |
| IL | — | $279.30 | — |
| IN | — | $279.30 | — |
| KS | — | $231.09 | — |
| KY | — | $229.64 | — |
| LA | — | $306.19 | — |
| MA | — | $229.64 | — |
| MD | — | $243.26 | — |
| ME | — | $229.64 | — |
| MI | — | $279.30 | — |
| MN | — | $279.30 | — |
| MO | — | $231.09 | — |
| MS | — | $229.64 | — |
| MT | — | $229.64 | — |
| NC | — | $229.64 | — |
| ND | — | $229.64 | — |
| NE | — | $231.09 | — |
| NH | — | $229.64 | — |
| NJ | — | $306.19 | — |
| NM | — | $306.19 | — |
| NV | — | $306.19 | — |
| NY | — | $306.19 | — |
| OH | — | $279.30 | — |
| OK | — | $306.19 | — |
| OR | — | $248.83 | — |
| PA | — | $243.26 | — |
| PR | — | $153.44 | — |
| RI | — | $229.64 | — |
| SC | — | $229.64 | — |
| SD | — | $229.64 | — |
| TN | — | $229.64 | — |
| TX | — | $306.19 | — |
| UT | — | $229.64 | — |
| VA | — | $243.26 | — |
| VI | — | $306.19 | — |
| VT | — | $229.64 | — |
| WA | — | $248.83 | — |
| WI | — | $279.30 | — |
| WV | — | $243.26 | — |
| WY | — | $229.64 | — |
How the L6600 fee compares
| Measure | Value |
|---|---|
| Rank among 50 L66 codes (lowest = 1) | 16 |
| Family fee range (average of state fees) | $61.02–$4,614.32 |
| Rural fee uplift | — |
Who bills L6600 (2024)
| Measure | Value |
|---|---|
| Suppliers billing rentals | — |
| Suppliers billing purchases | 4 |
| Referring clinicians | 13 |
| Medicare beneficiaries | 13 |
| States with claims | 0 |
| Year | Suppliers | Beneficiaries |
|---|---|---|
| 2022 | 5 | 29 |
| 2023 | 9 | 33 |
| 2024 | 4 | 13 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for L6600, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 34 | 29 | $217.09 | $161.87 |
| 2023 | 34 | 33 | $231.17 | $176.97 |
| 2024 | 16 | 13 | $242.04 | $189.76 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| DME suppliers | 2 | Anatomic Consideration |
| outpatient hospital claims | 2 | Anatomic Consideration |
What changed for L6600
- 2026-01-01: Average state fee rose 2.0%: $253.66 to $258.73
- 1982-01-01: L6600 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 L6600?
L6600 is the HCPCS Level II code for upper extremity additions, polycentric hinge, pair. Short descriptor: "Polycentric hinge pair".
How much does Medicare pay for L6600?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $153.44–$409.35. Rural fees can be higher.
Does Medicare cover L6600?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Did the Medicare fee for L6600 change in 2026?
The average non-rural state fee moved from $253.66 in 2025 to $258.73 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of L6600 can be billed per day?
2 on DME suppliers; 2 on outpatient hospital claims (NCCI medically unlikely edits).
Related L66 codes
- 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)
- L6629 — Upper extremity addition, quick disconnect lamination collar with coupling piece, otto bock or equal ($104.71–$238.81)
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 L6600
- Watch L6600 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for L6600
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.