L6584 — Preparatory, elbow disarticulation or above elbow, single wall plastic socket, friction wrist, locking elbow, figure of eight harness, fair lead cable control, usmc or equal pylon, no cover, molded to patient model
L6584 is a HCPCS Level II code for preparatory, elbow disarticulation or above elbow, single wall plastic socket, friction wrist, locking elbow, figure of eight harness, fair lead cable control, usmc or equal pylon, no cover, molded to patient model. It belongs to the Orthotic and Prosthetic Procedures and Devices section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of L6584 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 2 units MAI 2 — Date of Service Edit: Policy · Anatomic Consideration
- DME supplier
- 2 units MAI 2 — Date of Service Edit: Policy · Anatomic Consideration
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for L6584
- Long descriptor
- Preparatory, elbow disarticulation or above elbow, single wall plastic socket, friction wrist, locking elbow, figure of eight harness, fair lead cable control, usmc or equal pylon, no cover, molded to patient model
- Short descriptor
- Elbow fair lead cable molded
- Added
- January 1, 1988
- BETOS
- D1F
- Pricing indicator
- 38 — DMEPOS
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Orthotics, prosthetics, prosthetic devices and vision services. Price subject to floors and ceilings.
Codes adjacent to L6584
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If L6584 is not quite right, the correct code is very often within a few positions of it.
- L6388Immediate post surgical or early fitting, application of rigid dressing only
- L6400Below elbow, molded socket, endoskeletal system, including soft prosthetic tissue shaping
- L6450Elbow disarticulation, molded socket, endoskeletal system, including soft prosthetic tissue shaping
- L6500Above elbow, molded socket, endoskeletal system, including soft prosthetic tissue shaping
- L6550Shoulder disarticulation, molded socket, endoskeletal system, including soft prosthetic tissue shaping
- L6570Interscapular thoracic, molded socket, endoskeletal system, including soft prosthetic tissue shaping
- L6580Preparatory, wrist disarticulation or below elbow, single wall plastic socket, friction wrist, flexible elbow hinges, figure of eight harness, humeral cuff, bowden cable control, usmc or equal pylon, no cover, molded to patient model
- L6582Preparatory, wrist disarticulation or below elbow, single wall socket, friction wrist, flexible elbow hinges, figure of eight harness, humeral cuff, bowden cable control, usmc or equal pylon, no cover, direct formed
- L6586Preparatory, elbow disarticulation or above elbow, single wall socket, friction wrist, locking elbow, figure of eight harness, fair lead cable control, usmc or equal pylon, no cover, direct formed
- L6588Preparatory, shoulder disarticulation or interscapular thoracic, single wall plastic socket, shoulder joint, locking elbow, friction wrist, chest strap, fair lead cable control, usmc or equal pylon, no cover, molded to patient model
- L6590Preparatory, shoulder disarticulation or interscapular thoracic, single wall socket, shoulder joint, locking elbow, friction wrist, chest strap, fair lead cable control, usmc or equal pylon, no cover, direct formed
- 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
Questions about L6584
What is HCPCS code L6584?
L6584 is a HCPCS Level II code for preparatory, elbow disarticulation or above elbow, single wall plastic socket, friction wrist, locking elbow, figure of eight harness, fair lead cable control, usmc or equal pylon, no cover, molded to patient model. It sits in the Orthotic and Prosthetic Procedures and Devices section.
Does Medicare cover L6584?
The CMS HCPCS file marks L6584 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.