L5646 – Addition to lower extremity, below knee, air, fluid, gel or equal, cushion socket

HCPCS Level II code · L codes: Orthotic and Prosthetic Procedures and Devices

Active code Carrier judgment

HCPCS codeL5646
Long description
Addition to lower extremity, below knee, air, fluid, gel or equal, cushion socket
Short description
Below knee cushion socket
Pricing indicator
38 Orthotics, prosthetics, prosthetic devices & vision services
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
D1F Prosthetic/Orthotic devices
Added
January 1, 1986
Last change
January 1, 2004 – No change

Frequently asked questions

What is HCPCS code L5646?

L5646 is a HCPCS Level II code for addition to lower extremity, below knee, air, fluid, gel or equal, cushion socket.

Does Medicare cover L5646?

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

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.