Summary & Overview
HCPCS Level II L8480: Prosthetic Sock, Single Ply, Above-Knee Fitting
HCPCS Level II code L8480 denotes a single-ply prosthetic sock used for fitting above-knee prostheses. Nationally, this code represents a common supply item within prosthetics care that supports accurate socket fit and patient comfort during the fitting process. Proper coding for fitting supplies like L8480 affects device provisioning workflows, billing accuracy, and claims adjudication across commercial and public payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical role, typical sites of service, and common billing considerations. The publication outlines payer coverage patterns, applicable billing modifiers, and how L8480 fits into prosthetics service lines and patient encounters. It also summarizes benchmarking metadata and notes where source data is not available.
The material is intended for billing professionals, prosthetics clinicians, and policy analysts seeking a national overview of how a basic prosthetic fitting supply is classified and reimbursed across major payers. Data not available in the input.
Billing Code Overview
HCPCS Level II code L8480 describes a prosthetic sock, single ply, fitting, above knee, each. This item is a single-ply prosthetic sock intended for fitting purposes for an above-knee (transfemoral) prosthesis. The service type is a prosthetic fitting supply used during prosthesis fitting and sizing sessions. The typical site of service is an outpatient prosthetics clinic or orthotics and prosthetics provider setting where prosthetic devices are measured, fitted, and adjusted.
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Clinical & Coding Specifications
Clinical Context
A 58-year-old male with a right transfemoral amputation presents to a prosthetics clinic for routine fitting and maintenance of his existing above-knee socket. The patient reports increased distal pressure and minor skin irritation after recent weight change. A certified prosthetist evaluates the socket fit, measures limb volume, and selects a single-ply prosthetic sock sized for the residual limb to improve comfort and interface pressure distribution. The prosthetist documents limb measurements, sock ply and quantity, and performs the fitting during an outpatient clinic visit. The single-ply sock is provided and adjusted until appropriate cushioning and suspension are achieved. Billing uses L8480 for the prosthetic sock, single ply, fitting, above knee, each, appended with the appropriate modifier reflecting laterality and payer requirements. Typical site of service is an outpatient prosthetics and orthotics clinic within a hospital outpatient department or independent prosthetics provider office. Follow-up may include skin checks and socket adjustments in subsequent visits.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | Use when the prosthetic sock is for the left above-knee residual limb |