L6646 – Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system
HCPCS Level II code · L codes: Orthotic and Prosthetic Procedures and Devices
HCPCS codeL6646
- Long description
- Upper 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
- Pricing indicator
38Orthotics, prosthetics, prosthetic devices & vision services- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
D1FProsthetic/Orthotic devices- Added
- January 1, 2003
- Last change
- January 1, 2003 – No change
Frequently asked questions
What is HCPCS code L6646?
L6646 is a HCPCS Level II code for upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system.
Does Medicare cover L6646?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby L codes
- L6632 – Upper extremity addition, latex suspension sleeve, each
- L6635 – Upper extremity addition, lift assist for elbow
- L6637 – Upper extremity addition, nudge control elbow lock
- L6638 – Upper extremity addition to prosthesis, electric locking feature, only for use with manually powered elbow
- L6640 – Upper extremity additions, shoulder abduction joint, pair
- L6641 – Upper extremity addition, excursion amplifier, pulley type
- L6642 – Upper extremity addition, excursion amplifier, lever type
- L6645 – Upper extremity addition, shoulder flexion-abduction joint, each
- L6647 – Upper extremity addition, shoulder lock mechanism, body powered actuator
- L6648 – Upper extremity addition, shoulder lock mechanism, external powered actuator
- L6650 – Upper extremity addition, shoulder universal joint, each
- L6655 – Upper extremity addition, standard control cable, extra
- L6660 – Upper extremity addition, heavy duty control cable
- L6665 – Upper extremity addition, teflon, or equal, cable lining
- L6670 – Upper extremity addition, hook to hand, cable adapter
- L6672 – Upper extremity addition, harness, chest or shoulder, saddle type
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.