L6930 Below-Elbow External Power — HCPCS Reimbursement | OpenPayer

Summary & Overview

HCPCS L6930: Below-Elbow External Power Forearm Prosthesis

HCPCS Level II code L6930 denotes a below-elbow, externally powered forearm prosthetic assembly with a self-suspended inner socket, removable forearm shell, Otto Bock or equivalent switch, cables, two batteries and one charger, and switch control of the terminal device. The code captures a comprehensive powered prosthetic solution intended to restore functional use of a terminal device for patients with transradial-level limb loss. Nationally, coverage and utilization of powered upper-limb prostheses have implications for access to durable medical equipment benefits, device standardization, and supplier credentialing.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical scope, typical sites of service, and the kinds of services and components represented by the billing line. The publication summarizes common payer considerations and benchmarking topics, highlights policy and coding context relevant to prosthetic device reimbursement, and provides clinical context for utilization and device configuration. Data not available in the input is acknowledged where applicable. This resource is intended for clinicians, billing professionals, prosthetics suppliers, and policy analysts seeking a national-level reference on coding and service characteristics for HCPCS Level II code L6930.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareL6930HCPCS Level IIprosthesisupper limb prostheticpowered prosthesisdurable medical equipmentprosthetics-and-orthoticsdevice componentsoutpatient prosthetics

Billing Code Overview

HCPCS Level II code L6930 describes a below-elbow external power prosthetic component featuring a self-suspended inner socket, a removable forearm shell, an Otto Bock or equal switch, associated cables, two batteries and one charger, and switch control of the terminal device. This device is an externally powered forearm prosthesis intended to restore hand/terminal device function for patients with below-elbow amputations or limb loss.

Service Type: Prosthetic device – external power upper limb prosthesis

Typical Site of Service: Outpatient prosthetics/orthotics clinic or durable medical equipment setting

Clinical & Coding Specifications

Clinical Context

A 45-year-old adult with a unilateral transradial amputation presents to a certified prosthetist following surgical healing and clearance. The patient reports difficulty performing activities of daily living that require grasp and release, such as eating, dressing, and light household tasks. The prosthetist evaluates residual limb length, skin integrity, range of motion, and cognitive and motor ability to operate an externally powered terminal device. After assessment, the team prescribes a below-elbow, externally powered prosthesis with a self-suspended inner socket, removable forearm shell, Otto Bock (or equivalent) switch control of the terminal device, cabling, two batteries, and one charger.

The clinical workflow includes: referral from the surgeon or physiatrist; pre-prosthetic counseling and informed consent; measurement and casting or digital scanning of the residual limb; fabrication of a self-suspending inner socket and removable forearm shell; integration of an external power unit and switch control for the terminal device; fitting and initial programming of the switch and electronics; training in donning/doffing, battery management, care and safe use; and follow-up visits for alignment, function optimization, and warranty/repair coordination. Typical sites of service are outpatient prosthetics clinics, specialized orthotics and prosthetics (O&P) facilities, and ambulatory surgery centers for procedures requiring sedation or revision. The device supports community and home use and requires periodic maintenance visits for battery replacement, switch servicing, and component upgrades.

Coding Specifications

Modifier	Description	When to Use

HCPCS L6712: Pediatric Mechanical Voluntary-Closing Hook

HCPCS-L5679-LOWER-EXTREMITY-PROSTHETIC-SOCKET-INSERT-SILICONE-GEL

HCPCS L5679: Lower-Extremity Prosthetic Socket Insert, Silicone/Elastomeric

HCPCS-L6360-INTERSCAPULAR-THORACIC-PROSTHESIS-PASSIVE-RESTORATION

HCPCS L6360: Interscapular Thoracic Passive Restoration Prosthesis

HCPCS-L8615-COCHLEAR-IMPLANT-HEADSET-REPLACEMENT

HCPCS L8615: Cochlear Implant Headset Replacement

HCPCS-L5654-SYMES-LOWER-EXTREMITY-SOCKET-INSERT-ADDITION

HCPCS L5654: Symes Lower Extremity Socket Insert Addition

HCPCS-L5655-BELOW-KNEE-SOCKET-INSERT-PROSTHETIC-ADDITION

HCPCS L5655: Below-Knee Prosthetic Socket Insert

HCPCS-L5961-POLYCENTRIC-HIP-JOINT-PNEUMATIC-HYDRAULIC-ROTATION-CONTROL

HCPCS L5961: Endoskeletal Polycentric Hip Joint with Pneumatic/Hydraulic Control

HCPCS-L8430-PROSTHETIC-SOCK-MULTIPLE-PLY-ABOVE-KNEE

HCPCS Level II L8430: Prosthetic Sock, Multiple Ply, Above Knee

HCPCS-L6350-INTERSCAPULAR-THORACIC-SHOULDER-BULKHEAD-PROSTHESIS

HCPCS L6350: Interscapular Thoracic Upper-Extremity Prosthetic Socket

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

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

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Taxonomy Code	Specialty	Notes
`261QM0800X`	Prosthetist/Orthotist	Primary clinician for measurement, fabrication, fitting, and follow-up of external powered upper-limb prostheses.
`364S00000X`	Physical Medicine & Rehabilitation (Physiatry)	Referring and follow-up clinicians who manage functional goals, prescriptive indications, and coordinate rehab services.
`207RE0000X`	Orthopedic Surgery	Surgeons who perform amputations, residual limb revisions, or surgical procedures that impact prosthetic fitting.
`363L00000X`	Occupational Therapy	Providers responsible for training in device operation, activities of daily living, and functional integration.
`3336C0003X`	Durable Medical Equipment Supplier	Suppliers who dispense prosthetic components, batteries, chargers, and perform maintenance.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`Z89.610`	Acquired absence of right arm above elbow	Indicates an upper-limb amputation; supports medical necessity for a below-elbow external power prosthesis when residual limb anatomy permits.
`Z89.611`	Acquired absence of left arm above elbow	Indicates contralateral or left-sided amputation; relevant when sided coding is necessary for device provision.
`Z89.621`	Acquired absence of right arm below elbow	Directly relevant for a below-elbow prosthesis prescription and device fitting.
`Z89.622`	Acquired absence of left arm below elbow	Identifies left-sided transradial amputation for prosthetic provisioning.
`S48.011A`	Laceration without foreign body of right forearm, initial encounter	Example of a traumatic forearm injury that may result in amputation or limb loss leading to prosthetic need.
`T87.31XA`	Infection and inflammatory reaction due to internal prosthetic device, initial encounter	Relevant when prior implant-related complications affected limb salvage and ultimately led to amputation and prosthetic rehabilitation.
`G54.1`	Brachial plexus injury	Neurologic cause of severe upper limb dysfunction that may necessitate a powered prosthetic solution when amputation is present or for severe functional loss.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`97760`	Orthotic(s) fitting and training, upper extremity(s), initial encounter, each 15 minutes	Used by occupational or physical therapists to document training and functional use of the new externally powered prosthesis.
`97763`	Orthotic(s)/prosthetic(s) training, fit and function, upper and/or lower extremity, initial; each 15 minutes	Used for structured prosthetic training sessions focused on operation of switch-controlled terminal device and activities of daily living.
`99070`	Supplies and materials (non-covered); used when specific items are not included in the device allowance	Used when additional supplies (adhesives, liners, or consumables) are furnished that are not part of the HCPCS L6930 allowance.
`97530`	Therapeutic activities, direct (one-on-one) patient contact by the provider (use of dynamic activities to improve functional performance), each 15 minutes	Used by therapists to document functional retraining tasks while using the prosthesis.
`99080`	Special reports or forms, completion of medical records; used for documentation required by payers	Used when insurers require completion of additional documentation for custom prosthetic components or claims review.

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