Summary & Overview
HCPCS L3917: Hand Orthosis for Metacarpal Fracture, Prefabricated Customized
HCPCS Level II code L3917 identifies a prefabricated hand orthosis intended for metacarpal fractures that has been trimmed, bent, molded, assembled, or otherwise customized for an individual patient by a skilled provider. This code matters nationally because metacarpal fractures are common and timely provision of an appropriately fitted orthosis affects immobilization, comfort, and functional recovery. Clear coding for customized prefabricated orthoses supports accurate claims adjudication and appropriate clinical care pathways.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical purpose, typical sites of service, and the payer landscape covered. The publication summarizes common billing considerations, likely reimbursement contexts, and where to look for policy guidance. It also outlines what to expect in claims processing for a device that is prefabricated but requires patient-specific modification. Data not available in the input will be noted where applicable. The content is intended to help coding, billing, and clinical teams understand when to use L3917, how it fits into orthotics service lines, and which national payers typically cover such services.
Billing Code Overview
HCPCS Level II code L3917 describes a hand orthosis for metacarpal fracture, supplied as a prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise. The code is used when a prefabricated metacarpal fracture orthosis requires patient-specific customization rather than being used straight from stock.
-
Service type: Orthotic device provision and customization for a metacarpal fracture
-
Typical site of service: Outpatient orthotics/prosthetics clinics, hospital outpatient departments, physician offices, ambulatory surgery centers, and rehabilitation clinics
Clinical & Coding Specifications
Clinical Context
A 32-year-old right-hand–dominant male presents to an orthopedic hand clinic after sustaining a closed nondisplaced transverse fracture of the second metacarpal (boxer-type variant) while punching a wall. After clinical evaluation and radiographs confirm alignment within acceptable parameters, the hand therapist or orthotist fits a prefabricated metacarpal fracture orthosis to immobilize the affected metacarpal and adjacent joints. The device represented by L3917 is a prefabricated hand orthosis that is trimmed, molded, bent, or otherwise customized by a clinician with expertise (orthotist, certified hand therapist, or occupational therapist) to achieve proper fit and immobilization.
The typical workflow: initial evaluation by the orthopedic surgeon or urgent care clinician, plain radiographs, decision for nonoperative management, referral to hand therapy or orthotics, customization and fitting of the prefabricated orthosis (L3917), patient education on wear schedule and skin checks, scheduled follow-up visits with repeat radiographs at 1–2 weeks and at union assessment (4–6 weeks). Documentation includes diagnosis, justification for orthosis, measurements, customization steps, device description, and follow-up plan.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side |