L6586 HCPCS Reimbursement & Policy | OpenPayer

Summary & Overview

HCPCS L6586: Preparatory Elbow Disarticulation/Above-Elbow Single Wall Socket

HCPCS Level II code L6586 identifies a preparatory prosthesis for individuals with elbow disarticulation or above-elbow amputation, featuring a single-wall socket, friction wrist, locking elbow, figure-of-eight harness, fair lead cable control, and USMC-style pylon. This code matters nationally because it defines coverage and billing rules for a specific class of upper-limb prosthetic devices that support functional rehabilitation and prosthetic fitting processes. Payers commonly involved in coverage decisions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers of this publication will find a concise overview of the clinical context for L6586, including the device components and typical care settings, followed by payer coverage considerations and common modifiers used on claims. The report outlines what providers and billing staff need to know about documentation elements, procedural context, and how L6586 fits into the broader prosthetics service line. Where input data is absent, the publication notes "Data not available in the input."

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareL6586HCPCS Level IIprostheticsupper-limb prosthesiselbow disarticulationprosthetic fittingoutpatient rehabilitationorthotics and prostheticsprosthetic device billing

Billing Code Overview

HCPCS Level II code L6586 describes a preparatory prosthetic device intended for individuals with elbow disarticulation or above-elbow amputation. The item is a single wall socket configuration with a friction wrist, locking elbow, and figure-of-eight harness. It includes fair lead cable control, a USMC or equal pylon, no cover, and is direct formed.

Service Type: Prosthetic upper-limb preparatory device for elbow disarticulation or above-elbow fittings.

Typical Site of Service: Prosthetic and orthotic clinics, outpatient rehabilitation centers, or specialized prosthetics suppliers.

Clinical & Coding Specifications

Clinical Context

A 45-year-old patient presents for fabrication and fitting of a preparatory prosthetic after an elbow disarticulation (or transhumeral/amputation at or above the elbow) performed for traumatic injury. The patient is referred by the orthopedic surgeon or physiatrist to a certified prosthetist for initial preparatory socket fitting. The workflow includes a clinical evaluation of the residual limb and shoulder function, measurement and casting or scanning of the limb, selection of a single-wall socket with a friction wrist and locking elbow mechanism, and prescription of a figure-of-eight harness and fair lead cable control. A preparatory device is issued to allow early prosthetic training while a definitive prosthesis is being fabricated. Follow-up visits include adjustment of the direct-formed socket, harness fitting, training with occupational therapy for donning/doffing and control, and periodic fit checks. Typical sites of service are an outpatient prosthetics clinic, rehabilitation facility, or ambulatory surgical center for fittings that require on-site adjustments.

Coding Specifications

Modifier	Description	When to Use
`00`	Standard reporting (no modifier)	Use when no special circumstances apply and the service is routine.
`11`

HCPCS Level II L6691: Upper Extremity Removable Insert

HCPCS-L5690-LOWER-EXTREMITY-BELOW-KNEE-WAIST-BELT-PADDED-LINED

HCPCS L5690: Addition to Lower Extremity, Below Knee, Waist Belt, Padded and Lined

HCPCS-L8687-IMPLANTABLE-NEUROSTIMULATOR-RECHARGEABLE-DUAL-ARRAY

HCPCS L8687: Implantable Rechargeable Neurostimulator Pulse Generator, Dual Array

HCPCS-L5974-LOWER-EXTREMITY-PROSTHESIS-SINGLE-AXIS-ANKLE-FOOT

HCPCS L5974: Lower Extremity Prosthesis Foot, Single-Axis Ankle/Foot

HCPCS-L6038-PROSTHETIC-DIGIT-MECHANICAL-MULTIAXIAL-ATTACHMENT

HCPCS L6038: Mechanical Prosthetic Addition for Single Digit/Thumb

HCPCS-L6320-SHOULDER-DISARTICULATION-SHOULDER-CAP-PASSIVE-RESTORATION

HCPCS L6320: Shoulder Disarticulation Shoulder Cap, Passive Restoration

HCPCS-L6700-UPPER-EXTREMITY-MYOELECTRONIC-CONTROL-MODULE-PATTERN-RECOGNITION

HCPCS L6700: Upper Extremity Myoelectronic Control Module

HCPCS-L6630-UPPER-EXTREMITY-ADDITION-STAINLESS-WRIST

HCPCS L6630: Upper Extremity Addition, Stainless Steel, Wrist

HCPCS-L8511-TRACHEOESOPHAGEAL-PROSTHESIS-REPLACEMENT

HCPCS L8511: Tracheoesophageal Prosthesis Replacement

HCPCS-L8033-NIPPLE-PROSTHESIS-CUSTOM-FABRICATED

HCPCS Level II L8033: Nipple Prosthesis, Custom Fabricated, Reusable

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Taxonomy Code	Specialty	Notes
223E00000X	Prosthetics and Orthotics	Certified prosthetists who fabricate and fit the preparatory device.
2084P0800X	Physical Medicine & Rehabilitation (Physiatry)	Physiatrists who manage rehabilitation and coordinate prosthetic care.
2085R0200X	Orthopedic Surgery	Orthopedic surgeons who perform the amputation and provide surgical follow-up.
261QM0800X	Occupational Therapy	Occupational therapists who provide prosthetic training and functional rehabilitation.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`Z89.612`	Acquired absence of left elbow and forearm	Relevant when the preparatory prosthesis is for a left-sided elbow disarticulation.
`Z89.611`	Acquired absence of right elbow and forearm	Relevant when the preparatory prosthesis is for a right-sided elbow disarticulation.
`S48.0XXA`	Traumatic amputation of shoulder and upper arm, initial encounter	Applicable when traumatic amputation at or above the elbow necessitates a preparatory prosthesis.
`T87.89`	Other complications of amputation stump	Relevant when stump complications drive need for preparatory socket adjustments and close follow-up.
`Z98.890`	Other specified postprocedural states	Used to indicate a post-amputation state when documenting prosthetic needs.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`97760`	Orthotic(s) management and training; initial orthotic management and training, upper extremity, lower extremity, and/or trunk, one or more areas, each 15 minutes	Used for training the patient in use of the preparatory prosthesis, donning/doffing, and functional activities.
`97763`	Prosthetic training, upper and/or lower extremity, initial encounter, each 15 minutes	Used for focused training sessions specific to the preparatory upper‑extremity prosthesis.
`99456`	Work related or medical disability examination; treatment of patient — initial evaluation (used in some payer contexts for work-related prosthetic evaluation)	Used when evaluating work-related impairment or functional capacity tied to prosthetic fitting (billing varies by payer).
`20550`	Injection(s); single tendon sheath, or ligament, or ganglion cyst (if needed for symptomatic management pre-fitting)	Occasionally used if soft tissue procedures or injections are required before definitive fitting.
`99070`	Supplies and materials (eg, gloves, casting materials) provided by the physician over and above those usually included with the office visit	Used to bill for non-covered expendable materials associated with fabrication or adjustments when payer policies permit.

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