L3031 — Foot, insert/plate, removable, addition to lower extremity orthosis, high strength, lightweight material, all hybrid lamination/prepreg composite, each
L3031 is a HCPCS Level II code for foot, insert/plate, removable, addition to lower extremity orthosis, high strength, lightweight material, all hybrid lamination/prepreg composite, each. It belongs to the Orthotic and Prosthetic Procedures and Devices section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of L3031 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 2 units MAI 3 — Date of Service Edit: Clinical · Anatomic Consideration
- DME supplier
- 2 units MAI 3 — Date of Service Edit: Clinical · Anatomic Consideration
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for L3031
- Long descriptor
- Foot, insert/plate, removable, addition to lower extremity orthosis, high strength, lightweight material, all hybrid lamination/prepreg composite, each
- Short descriptor
- Foot lamin/prepreg composite
- Added
- January 1, 2004
- BETOS
- D1F
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to L3031
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If L3031 is not quite right, the correct code is very often within a few positions of it.
- L2999Lower extremity orthoses, not otherwise specified
- L3000Foot, insert, removable, molded to patient model, 'ucb' type, berkeley shell, each
- L3001Foot, insert, removable, molded to patient model, spenco, each
- L3002Foot, insert, removable, molded to patient model, plastazote or equal, each
- L3003Foot, insert, removable, molded to patient model, silicone gel, each
- L3010Foot, insert, removable, molded to patient model, longitudinal arch support, each
- L3020Foot, insert, removable, molded to patient model, longitudinal/ metatarsal support, each
- L3030Foot, insert, removable, formed to patient foot, each
- L3040Foot, arch support, removable, premolded, longitudinal, each
- L3050Foot, arch support, removable, premolded, metatarsal, each
- L3060Foot, arch support, removable, premolded, longitudinal/ metatarsal, each
- L3070Foot, arch support, non-removable attached to shoe, longitudinal, each
- L3080Foot, arch support, non-removable attached to shoe, metatarsal, each
- L3090Foot, arch support, non-removable attached to shoe, longitudinal/metatarsal, each
- L3100Hallus-valgus night dynamic splint, prefabricated, off-the-shelf
- L3140Foot, abduction rotation bar, including shoes
Questions about L3031
What is HCPCS code L3031?
L3031 is a HCPCS Level II code for foot, insert/plate, removable, addition to lower extremity orthosis, high strength, lightweight material, all hybrid lamination/prepreg composite, each. It sits in the Orthotic and Prosthetic Procedures and Devices section.
Does Medicare cover L3031?
The CMS HCPCS file marks L3031 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.