HCPCS Level II · Orthotic and prosthetic procedures and devices
L6646Upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About L6646
L6646 is an HCPCS Level II code in the L series (orthotic and prosthetic procedures and devices), describing upper extremity addition, shoulder joint, multipositional locking, flexion, adjustable abduction friction control, for use with body powered or external powered system.
It was added to HCPCS effective 01/01/2003.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Multipo locking shoulder jnt
- Date added
- 01/01/2003
- Action effective
- 01/01/2003
- BETOS
- D1F
Related L66xx codes
- L6600Upper extremity additions, polycentric hinge, pair
- L6605Upper extremity additions, single pivot hinge, pair
- L6610Upper extremity additions, flexible metal hinge, pair
- L6611Addition to upper extremity prosthesis, external powered, additional switch, any type
- L6615Upper extremity addition, disconnect locking wrist unit
- L6616Upper extremity addition, additional disconnect insert for locking wrist unit, each
- L6620Upper extremity addition, flexion/extension wrist unit, with or without friction
- L6621Upper extremity prosthesis addition, flexion/extension wrist with or without friction, for use with external powered terminal device
- L6623Upper extremity addition, spring assisted rotational wrist unit with latch release
- L6624Upper extremity addition, flexion/extension and rotation wrist unit
- L6625Upper extremity addition, rotation wrist unit with cable lock
- L6628Upper extremity addition, quick disconnect hook adapter, otto bock or equal
Common questions about L6646
Is HCPCS L6646 still valid?
- Yes. L6646 is active in the CMS October 2026 HCPCS file.
Does Medicare cover L6646?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.