L2340 — Addition to lower extremity, pre-tibial shell, molded to patient model
L2340 is a HCPCS Level II code for addition to lower extremity, pre-tibial shell, molded to patient model. 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 L2340 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 2 — Date of Service Edit: Policy · Anatomic Consideration
- DME supplier
- 2 units MAI 2 — Date of Service Edit: Policy · 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 L2340
- Long descriptor
- Addition to lower extremity, pre-tibial shell, molded to patient model
- Short descriptor
- Pre-tibial shell molded to p
- Added
- January 1, 1986
- BETOS
- D1F
- Pricing indicator
- 38 — DMEPOS
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.
Orthotics, prosthetics, prosthetic devices and vision services. Price subject to floors and ceilings.
Codes adjacent to L2340
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If L2340 is not quite right, the correct code is very often within a few positions of it.
- L2270Addition to lower extremity, varus/valgus correction ('t') strap, padded/lined or malleolus pad
- L2275Addition to lower extremity, varus/valgus correction, plastic modification, padded/lined
- L2280Addition to lower extremity, molded inner boot
- L2300Addition to lower extremity, abduction bar (bilateral hip involvement), jointed, adjustable
- L2310Addition to lower extremity, abduction bar-straight
- L2320Addition to lower extremity, non-molded lacer, for custom fabricated orthosis only
- L2330Addition to lower extremity, lacer molded to patient model, for custom fabricated orthosis only
- L2335Addition to lower extremity, anterior swing band
- L2350Addition to lower extremity, prosthetic type, (bk) socket, molded to patient model, (used for 'ptb' 'afo' orthoses)
- L2360Addition to lower extremity, extended steel shank
- L2370Addition to lower extremity, patten bottom
- L2375Addition to lower extremity, torsion control, ankle joint and half solid stirrup
- L2380Addition to lower extremity, torsion control, straight knee joint, each joint
- L2385Addition to lower extremity, straight knee joint, heavy duty, each joint
- L2387Addition to lower extremity, polycentric knee joint, for custom fabricated knee ankle foot orthosis, each joint
- L2390Addition to lower extremity, offset knee joint, each joint
Questions about L2340
What is HCPCS code L2340?
L2340 is a HCPCS Level II code for addition to lower extremity, pre-tibial shell, molded to patient model. It sits in the Orthotic and Prosthetic Procedures and Devices section.
Does Medicare cover L2340?
The CMS HCPCS file marks L2340 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.