L6645 HCPCS Level II code: Upper extremity addition, shoulder flexion-abduction joint, each

L6645 is the HCPCS code for “Upper extremity addition, shoulder flexion-abduction joint, each” in CMS’s HCPCS Level II October 2026 release.

CMS lists L6645’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.

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.