L5850 – Addition, endoskeletal system, above knee or hip disarticulation, knee extension assist
HCPCS Level II code · L codes: Orthotic and Prosthetic Procedures and Devices
HCPCS codeL5850
- Long description
- Addition, endoskeletal system, above knee or hip disarticulation, knee extension assist
- Short description
- Endo ak/hip knee extens assi
- 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, 1988
- Last change
- January 1, 1988 – No change
Frequently asked questions
What is HCPCS code L5850?
L5850 is a HCPCS Level II code for addition, endoskeletal system, above knee or hip disarticulation, knee extension assist.
Does Medicare cover L5850?
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
- L5826 – Addition, endoskeletal knee-shin system, single axis, hydraulic swing phase control, with miniature high activity frame
- L5827 – Endoskeletal knee-shin system, single axis, electromechanical swing and stance phase control, with or without shock absorption and stance extension damping
- L5828 – Addition, endoskeletal knee-shin system, single axis, fluid swing and stance phase control
- L5830 – Addition, endoskeletal knee-shin system, single axis, pneumatic/ swing phase control
- L5840 – Addition, endoskeletal knee/shin system, 4-bar linkage or multiaxial, pneumatic swing phase control
- L5841 – Addition, endoskeletal knee-shin system, polycentric, pneumatic swing, and stance phase control
- L5845 – Addition, endoskeletal, knee-shin system, stance flexion feature, adjustable
- L5848 – Addition to endoskeletal knee-shin system, fluid stance extension, dampening feature, with or without adjustability
- L5855 – Addition, endoskeletal system, hip disarticulation, mechanical hip extension assist
- L5856 – Addition to lower extremity prosthesis, endoskeletal knee-shin system, microprocessor control feature, swing and stance phase, includes electronic sensor(s), any type
- L5857 – Addition to lower extremity prosthesis, endoskeletal knee-shin system, microprocessor control feature, swing phase only, includes electronic sensor(s), any type
- L5858 – Addition to lower extremity prosthesis, endoskeletal knee shin system, microprocessor control feature, stance phase only, includes electronic sensor(s), any type
- L5859 – Addition to lower extremity prosthesis, endoskeletal knee-shin system, powered and programmable flexion/extension assist control, includes any type motor(s)
- L5910 – Addition, endoskeletal system, below knee, alignable system
- L5920 – Addition, endoskeletal system, above knee or hip disarticulation, alignable system
- L5925 – Addition, endoskeletal system, above knee, knee disarticulation or hip disarticulation, manual lock
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.