HCPCS Level II · Orthotic and prosthetic procedures and devices
L6637Upper extremity addition, nudge control elbow lock
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About L6637
L6637 is an HCPCS Level II code in the L series (orthotic and prosthetic procedures and devices), describing upper extremity addition, nudge control elbow lock.
It was added to HCPCS effective 01/01/1988.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Nudge control elbow lock
- Date added
- 01/01/1988
- Action effective
- 01/01/1988
- 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 L6637
Is HCPCS L6637 still valid?
- Yes. L6637 is active in the CMS October 2026 HCPCS file.
Does Medicare cover L6637?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.