L4631 HCPCS Level II code: Ankle foot orthosis, walking boot type, varus/valgus correction, rocker bottom, anterior tibial shell, soft interface, custom arch support, plastic or other…
L4631 is the HCPCS code for “Ankle foot orthosis, walking boot type, varus/valgus correction, rocker bottom, anterior tibial shell, soft interface, custom arch support, plastic or other material, includes straps and closures…” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
L4631Ankle foot orthosis, walking boot type, varus/valgus correction, rocker bottom, anterior tibial shell, soft interface, custom arch support, plastic or other material, includes straps and closures, custom fabricated
Short description: Afo, walk boot type, cus fab
HCPCS · United States
Medicare details
The indicators CMS publishes with L4631 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- DMEPOS fee schedule – Orthotics, prosthetics, prosthetic devices & vision services (price subject to floors and ceilings)
- Type of service
- Lump sum purchase of DME, prosthetics, orthotics
- BETOS category
- Prosthetic/Orthotic devices
- Added
- Jan 1, 2011
Where L4631 sits
- 1L codesOrthotics and prosthetics
- 2Active code L4631Ankle foot orthosis, walking boot type, varus/valgus correction, rocker bottom, anterior tibial shell, soft interface, custom arch support, plastic or other material, includes straps and closures, custom fabricated
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code L4631 mean?
L4631 is the HCPCS code for “Ankle foot orthosis, walking boot type, varus/valgus correction, rocker bottom, anterior tibial shell, soft interface, custom arch support, plastic or other material, includes straps and closures, custom fabricated” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover L4631?
CMS lists L4631’s Medicare coverage as “Carrier judgment” and its pricing as “DMEPOS fee schedule – Orthotics, prosthetics, prosthetic devices & vision services (price subject to floors and ceilings)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside L4631
All L codesL4387Walking boot, non-pneumatic, with or without joints, with or without interface material, prefabricated, off-the-shelfL4392Replacement, soft interface material, static afoL4394Replace soft interface material, foot drop splintL4396Static or dynamic ankle foot orthosis, including soft interface material, adjustable for fit, for positioning, may be used for minimal ambulation, prefabricated item that has…L4397Static or dynamic ankle foot orthosis, including soft interface material, adjustable for fit, for positioning, may be used for minimal ambulation, prefabricated, off-the-shelfL4398Foot drop splint, recumbent positioning device, prefabricated, off-the-shelfL5000Partial foot, shoe insert with longitudinal arch, toe fillerL5010Partial foot, molded socket, ankle height, with toe fillerL5020Partial foot, molded socket, tibial tubercle height, with toe fillerL5050Ankle, symes, molded socket, sach footL5060Ankle, symes, metal frame, molded leather socket, articulated ankle/footL5100Below knee, molded socket, shin, sach foot