L6646 HCPCS Level II code: Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external…
L6646 is the HCPCS code for “Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
L6646Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system
Short description: Multipo locking shoulder jnt
HCPCS · United States
Medicare details
The indicators CMS publishes with L6646 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, 2003
Where L6646 sits
- 1L codesOrthotics and prosthetics
- 2Active code L6646Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system
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 L6646 mean?
L6646 is the HCPCS code for “Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover L6646?
CMS lists L6646’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 L6646
All L codesL6637Upper extremity addition, nudge control elbow lockL6638Upper extremity addition to prosthesis, electric locking feature, only for use with manually powered elbowL6640Upper extremity additions, shoulder abduction joint, pairL6641Upper extremity addition, excursion amplifier, pulley typeL6642Upper extremity addition, excursion amplifier, lever typeL6645Upper extremity addition, shoulder flexion-abduction joint, eachL6647Upper extremity addition, shoulder lock mechanism, body powered actuatorL6648Upper extremity addition, shoulder lock mechanism, external powered actuatorL6650Upper extremity addition, shoulder universal joint, eachL6655Upper extremity addition, standard control cable, extraL6660Upper extremity addition, heavy duty control cableL6665Upper extremity addition, teflon, or equal, cable lining