L5991 HCPCS Level II code: Addition to lower extremity prostheses, osseointegrated external prosthetic connector
L5991 is the HCPCS code for “Addition to lower extremity prostheses, osseointegrated external prosthetic connector” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
L5991Addition to lower extremity prostheses, osseointegrated external prosthetic connector
Short description: Low pros ext osseo connector
HCPCS · United States
Medicare details
The indicators CMS publishes with L5991 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
- Oct 1, 2023
Where L5991 sits
- 1L codesOrthotics and prosthetics
- 2Active code L5991Addition to lower extremity prostheses, osseointegrated external prosthetic connector
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 L5991 mean?
L5991 is the HCPCS code for “Addition to lower extremity prostheses, osseointegrated external prosthetic connector” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover L5991?
CMS lists L5991’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 L5991
All L codesL5984All endoskeletal lower extremity prosthesis, axial rotation unit, with or without adjustabilityL5985All endoskeletal lower extremity prostheses, dynamic prosthetic pylonL5986All lower extremity prostheses, multi-axial rotation unit ('mcp' or equal)L5987All lower extremity prosthesis, shank foot system with vertical loading pylonL5988Addition to lower limb prosthesis, vertical shock reducing pylon featureL5990Addition to lower extremity prosthesis, user adjustable heel heightL5992All lower extremity prosthesis, foot shell for modular foot/non-solid ankle cushion heel (sach) replacement onlyL5999Lower extremity prosthesis, not otherwise specifiedL6000Partial hand, thumb remainingL6010Partial hand, little and/or ring finger remainingL6020Partial hand, no finger remainingL6025Transcarpal/metacarpal or partial hand disarticulation prosthesis, external power, self-suspended, inner socket with removable forearm section, electrodes and cables, two…