L5665 HCPCS Level II code: Addition to lower extremity, socket insert, multi-durometer, below knee
L5665 is the HCPCS code for “Addition to lower extremity, socket insert, multi-durometer, below knee” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
L5665Addition to lower extremity, socket insert, multi-durometer, below knee
Short description: Multi-durometer below knee
HCPCS · United States
Medicare details
The indicators CMS publishes with L5665 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, 1988
Where L5665 sits
- 1L codesOrthotics and prosthetics
- 2Active code L5665Addition to lower extremity, socket insert, multi-durometer, below knee
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 L5665 mean?
L5665 is the HCPCS code for “Addition to lower extremity, socket insert, multi-durometer, below knee” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover L5665?
CMS lists L5665’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 L5665
All L codesL5654Addition to lower extremity, socket insert, symes, (kemblo, pelite, aliplast, plastazote or equal)L5655Addition to lower extremity, socket insert, below knee (kemblo, pelite, aliplast, plastazote or equal)L5656Addition to lower extremity, socket insert, knee disarticulation (kemblo, pelite, aliplast, plastazote or equal)L5657Addition to lower extremity prosthesis, manual/automated adjustable air, fluid, gel or equal socket insert for limb volume management, any materialsL5658Addition to lower extremity, socket insert, above knee (kemblo, pelite, aliplast, plastazote or equal)L5661Addition to lower extremity, socket insert, multi-durometer symesL5666Addition to lower extremity, below knee, cuff suspensionL5668Addition to lower extremity, below knee, molded distal cushionL5670Addition to lower extremity, below knee, molded supracondylar suspension ('pts' or similar)L5671Addition to lower extremity, below knee / above knee suspension locking mechanism (shuttle, lanyard or equal), excludes socket insertL5672Addition to lower extremity, below knee, removable medial brim suspensionL5673Addition to lower extremity, below knee/above knee, custom fabricated from existing mold or prefabricated, socket insert, silicone gel, elastomeric, or equal, with or without…