Summary & Overview
HCPCS L6034: Partial Hand/Finger/Thumb Prosthesis, Molded Passive
HCPCS Level II code L6034 denotes a custom-molded, non-powered partial hand, finger, and thumb prosthesis for amputations distal to the metacarpal joint, supplied without prosthetic digits or thumb and excluding inserts described by L6692. This code represents a common category of upper-extremity prosthetic devices that supports functional rehabilitation and daily living activities for patients with partial hand or finger loss. Nationally, accurate coding of such prostheses matters for access to appropriate durable medical equipment and for consistent payment across payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines what clinicians, prosthetists, and billing staff need to know about typical use settings, coding scope, and areas that commonly require attention during claims submission.
Readers will find benchmarks and context about typical site-of-service use (outpatient prosthetics clinics and O&P facilities), a concise clinical description tied to device fabrication and fitting, and guidance on where to locate additional coding detail. Data not available in the input is noted where applicable, including specific reimbursement rates, associated taxonomies, and ICD-10 mappings. The summary emphasizes clarity about what is included under L6034 and what is explicitly excluded, supporting accurate claim classification and documentation.
Billing Code Overview
HCPCS Level II code L6034 describes a partial hand, finger, and thumb prosthesis without prosthetic digit(s)/thumb, intended for amputation distal to the metacarpal joint. The item includes a flexible or non-flexible interface and is molded to a patient model for use without external power and/or with a passive prosthetic digit/thumb. The description specifies that the code does not include inserts described by L6692.
Service type: Upper extremity prosthetic device fabrication and supply
Typical site of service: Outpatient prosthetics clinic or orthotics and prosthetics (O&P) facility, where custom molding and fitting are performed.
Clinical & Coding Specifications
Clinical Context
A 45-year-old right-hand dominant construction worker presents several months after traumatic partial amputation of the ring and small finger distal to the metacarpophalangeal joints. After wound healing and occupational therapy, the patient reports difficulty with gripping, manual tasks, and work-related tool use. The prosthetics clinic evaluates the residual hand and fabricates a custom partial hand prosthesis without prosthetic digits (L6034) to restore palmar surface contour, provide a flexible interface, and allow improved function with existing passive digit elements. The clinical workflow includes: intake and functional assessment by the prosthetist and occupational therapist; measurement and casting to create a patient model; fabrication and fitting of the molded, non-powered partial hand prosthesis; iterative adjustments during follow-up visits; and documentation of baseline function, treatment goals, device specifications, and patient-reported outcomes for coverage and medical necessity review.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when fabrication or fitting required substantially greater work than typical (document increased complexity/time). |
52 |