Summary & Overview
HCPCS L3740: Elbow Orthosis, Double Upright, Custom Fabricated
HCPCS Level II code L3740 denotes a custom-fabricated elbow orthosis with double uprights, forearm and arm cuffs, and an adjustable position lock with active control. This device is used to support, protect, and control elbow joint motion where individualized fabrication is required. Nationally, such orthoses are significant for post-surgical care, complex joint instability, and neurologic conditions requiring controlled range-of-motion or positioning.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of coverage considerations, typical sites of service for dispensing and fitting, and clinical contexts in which a custom elbow orthosis is used. The publication also summarizes common billing patterns, relevant modifiers and claims practices, and what to expect in terms of documentation and justification for custom fabrication requests.
The report provides benchmarks and policy context to inform billing, prior authorization, and medical necessity documentation for providers, suppliers, and compliance teams. Data not available in the input will be identified as missing rather than imputed.
Billing Code Overview
HCPCS Level II code L3740 describes an elbow orthosis, double upright with forearm/arm cuffs, adjustable position lock with active control, custom fabricated. This code represents a custom-fabricated upper-extremity durable medical equipment device designed to support, position, and control elbow movement through dual uprights and adjustable locking mechanisms with active control features.
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Service type: Custom-fabricated orthotic device for the elbow
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Typical site of service: Durable medical equipment suppliers, orthotics/prosthetics clinics, outpatient rehabilitation settings
Clinical & Coding Specifications
Clinical Context
A 45-year-old patient presents to an outpatient orthotics clinic after surgical repair of a distal humerus fracture with persistent elbow instability and limited active range of motion. The orthopedic surgeon orders a custom-fabricated elbow orthosis to provide medial-lateral support, forearm and upper-arm cuff stabilization, and an adjustable position lock that allows controlled active-assisted motion during rehabilitation. The typical clinical workflow includes: initial orthopedic evaluation and documentation of diagnosis and functional limitations; measurement and casting or 3D scanning by a certified orthotist; fabrication of a custom double-upright elbow orthosis with forearm/arm cuffs and adjustable lock; fitting and patient education session in the orthotics clinic; formal functional assessment and adjustment over follow-up visits; and communication of device delivery to the surgeon and primary payer for durable medical equipment (DME) coverage. Typical site of service: outpatient orthotics clinic, hospital-based DME department, or ambulatory surgery center for perioperative fitting. Service type: custom-fabricated elbow orthosis (DME) with active control and position lock, categorized as prosthetic/orthotic device furnishing and fitting services billed under HCPCS level II code L3740.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when the orthosis is for the left upper extremity |