L2126 HCPCS code: Knee ankle foot orthosis, fracture orthosis, femoral fracture cast orthosis, thermoplastic type casting material, custom fabricated
L2126 is the HCPCS Level II code for knee ankle foot orthosis, fracture orthosis, femoral fracture cast orthosis, thermoplastic type casting material, custom fabricated. The 2026 Medicare DMEPOS fee schedule pays $1,376.03 to $1,834.71 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. Its average fee ranks 15 of 17 L21 codes (family range $109.80–$2,176.65).
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 | 1988-01-01 |
| Last action effective | 2001-01-01 |
2026 Medicare DMEPOS fee schedule for L2126
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $1,376.03 | $1,834.71 | $1,834.71 | $1,376.03 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $1,703.35 | — |
| AL | — | $1,563.58 | — |
| AR | — | $1,376.03 | — |
| AZ | — | $1,574.26 | — |
| CA | — | $1,574.26 | — |
| CO | — | $1,545.25 | — |
| CT | — | $1,650.11 | — |
| DC | — | $1,510.57 | — |
| DE | — | $1,510.57 | — |
| FL | — | $1,563.58 | — |
| GA | — | $1,563.58 | — |
| HI | — | $1,821.35 | — |
| IA | — | $1,376.03 | — |
| ID | — | $1,376.03 | — |
| IL | — | $1,569.24 | — |
| IN | — | $1,569.24 | — |
| KS | — | $1,376.03 | — |
| KY | — | $1,563.58 | — |
| LA | — | $1,376.03 | — |
| MA | — | $1,650.11 | — |
| MD | — | $1,510.57 | — |
| ME | — | $1,650.11 | — |
| MI | — | $1,569.24 | — |
| MN | — | $1,569.24 | — |
| MO | — | $1,376.03 | — |
| MS | — | $1,563.58 | — |
| MT | — | $1,545.25 | — |
| NC | — | $1,563.58 | — |
| ND | — | $1,545.25 | — |
| NE | — | $1,376.03 | — |
| NH | — | $1,650.11 | — |
| NJ | — | $1,834.71 | — |
| NM | — | $1,376.03 | — |
| NV | — | $1,574.26 | — |
| NY | — | $1,834.71 | — |
| OH | — | $1,569.24 | — |
| OK | — | $1,376.03 | — |
| OR | — | $1,376.03 | — |
| PA | — | $1,510.57 | — |
| PR | — | $1,618.03 | — |
| RI | — | $1,650.11 | — |
| SC | — | $1,563.58 | — |
| SD | — | $1,545.25 | — |
| TN | — | $1,563.58 | — |
| TX | — | $1,376.03 | — |
| UT | — | $1,545.25 | — |
| VA | — | $1,510.57 | — |
| VI | — | $1,834.71 | — |
| VT | — | $1,650.11 | — |
| WA | — | $1,376.03 | — |
| WI | — | $1,569.24 | — |
| WV | — | $1,510.57 | — |
| WY | — | $1,545.25 | — |
How the L2126 fee compares
| Measure | Value |
|---|---|
| Rank among 17 L21 codes (lowest = 1) | 15 |
| Family fee range (average of state fees) | $109.80–$2,176.65 |
| Rural fee uplift | — |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| DME suppliers | 2 | Anatomic Consideration |
| outpatient hospital claims | 2 | Anatomic Consideration |
Medicare policy articles for this code
- A52457: Ankle-Foot/Knee-Ankle-Foot Orthoses - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC)) — mentions this code in its coding guidance
Covered diagnoses (12 ICD-10-CM codes)
The diagnoses most often listed as covered in the policy articles above:
| ICD-10-CM | Diagnosis | Articles listing it |
|---|---|---|
| A52.16 | Charcot's arthropathy (tabetic) | 1 |
| E08.610 | Diabetes mellitus due to underlying condition with diabetic neuropathic arthropathy | 1 |
| E09.610 | Drug or chemical induced diabetes mellitus with diabetic neuropathic arthropathy | 1 |
| E10.610 | Type 1 diabetes mellitus with diabetic neuropathic arthropathy | 1 |
| E11.610 | Type 2 diabetes mellitus with diabetic neuropathic arthropathy | 1 |
| M14.671 | Charcot's joint, right ankle and foot | 1 |
| M14.672 | Charcot's joint, left ankle and foot | 1 |
| M24.571 | Contracture, right ankle | 1 |
| M24.572 | Contracture, left ankle | 1 |
| M24.574 | Contracture, right foot | 1 |
Showing 10 of 12. The full list, non-covered diagnoses and CSV export are in Caduvo.
What changed for L2126
- 2026-01-01: Average state fee rose 2.0%: $1,517.60 to $1,547.96
- 1988-01-01: L2126 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 L2126?
L2126 is the HCPCS Level II code for knee ankle foot orthosis, fracture orthosis, femoral fracture cast orthosis, thermoplastic type casting material, custom fabricated. Short descriptor: "Kafo fem fx cast thermoplas".
How much does Medicare pay for L2126?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $1,376.03–$1,834.71. Rural fees can be higher.
Does Medicare cover L2126?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Which diagnoses support coverage for L2126?
Medicare policy articles that cite L2126 list 12 covered ICD-10-CM diagnosis codes across 1 article. The most cited include A52.16 (Charcot's arthropathy (tabetic)), E08.610 (Diabetes mellitus due to underlying condition with diabetic neuropathic arthropathy), E09.610 (Drug or chemical induced diabetes mellitus with diabetic neuropathic arthropathy). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.
Did the Medicare fee for L2126 change in 2026?
The average non-rural state fee moved from $1,517.60 in 2025 to $1,547.96 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of L2126 can be billed per day?
2 on DME suppliers; 2 on outpatient hospital claims (NCCI medically unlikely edits).
Related L21 codes
- L2106 — Ankle foot orthosis, fracture orthosis, tibial fracture cast orthosis, thermoplastic type casting material, custom fabricated ($781.31–$1,468.06)
- L2108 — Ankle foot orthosis, fracture orthosis, tibial fracture cast orthosis, custom fabricated ($999.36–$1,659.98)
- L2112 — Ankle foot orthosis, fracture orthosis, tibial fracture orthosis, soft, prefabricated, includes fitting and adjustment ($536.14–$708.38)
- L2114 — Ankle foot orthosis, fracture orthosis, tibial fracture orthosis, semi-rigid, prefabricated, includes fitting and adjustment ($666.99–$1,125.78)
- L2116 — Ankle foot orthosis, fracture orthosis, tibial fracture orthosis, rigid, prefabricated, includes fitting and adjustment ($818.05–$1,402.58)
- L2128 — Knee ankle foot orthosis, fracture orthosis, femoral fracture cast orthosis, custom fabricated ($1,808.36–$2,786.22)
- L2132 — Kafo, fracture orthosis, femoral fracture cast orthosis, soft, prefabricated, includes fitting and adjustment ($926.98–$1,427.66)
- L2134 — Kafo, fracture orthosis, femoral fracture cast orthosis, semi-rigid, prefabricated, includes fitting and adjustment ($1,111.41–$1,713.20)
- L2136 — Kafo, fracture orthosis, femoral fracture cast orthosis, rigid, prefabricated, includes fitting and adjustment ($1,358.95–$2,855.32)
- L2180 — Addition to lower extremity fracture orthosis, plastic shoe insert with ankle joints ($95.20–$220.62)
- L2182 — Addition to lower extremity fracture orthosis, drop lock knee joint ($47.61–$140.43)
- L2184 — Addition to lower extremity fracture orthosis, limited motion knee joint ($66.65–$189.80)
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 L2126
- Watch L2126 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for L2126
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.