Summary & Overview
HCPCS L5826: Endoskeletal Knee-Shin Addition, Hydraulic Swing-Phase Control
HCPCS Level II code L5826 represents an addition to an endoskeletal knee-shin orthotic system: a single-axis, hydraulic swing-phase control with a miniature high-activity frame. This component is used to manage knee motion during swing phase for patients requiring advanced functional support. Nationally, the code matters because it specifies a higher-complexity orthotic device component that can affect coverage determinations, prior authorization, and coding accuracy for durable medical equipment and orthotics services.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, common settings where the device is supplied, and implications for billing and documentation. The publication outlines typical benchmarks for utilization and coding practice, summarizes relevant payer considerations and policy updates where available, and clarifies clinical scenarios in which the device is applicable.
The report helps clinicians, billing staff, and durable medical equipment suppliers understand how L5826 is described, where it is typically provided, and what content to include in documentation and claims to support medical necessity. Data not available in the input is noted where benchmark specifics, payer coverage policies, and associated taxonomies or ICD-10 lists would normally appear.
Billing Code Overview
HCPCS Level II code L5826 describes an addition for an endoskeletal knee-shin orthotic system featuring a single axis with hydraulic swing phase control and a miniature high-activity frame. This component is intended to provide controlled knee motion during the swing phase for patients using knee-shin orthoses.
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Service type: Orthotic component addition for lower-extremity prosthetic/orthotic systems
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Typical site of service: Durable medical equipment suppliers, orthotics and prosthetics clinics, outpatient rehabilitation centers, and similar ambulatory settings
Clinical & Coding Specifications
Clinical Context
A 42-year-old active adult with a transtibial amputation presents to a regional prosthetics clinic for fitting of a new endoskeletal prosthesis. The prescription calls for an addition to an existing prosthetic limb: an endoskeletal knee-shin system, single axis, with hydraulic swing phase control and a miniature high-activity frame to support higher activity levels and dynamic gait. The clinical workflow begins with the prosthetist confirming the residual limb status, socket fit, and alignment of the current prosthesis. A gait assessment and functional mobility evaluation are performed to justify the component upgrade. The payer authorization process is initiated using the durable medical equipment benefit; documentation includes justification for the hydraulic swing phase control (improved swing clearance, cadence control) and the high-activity frame (higher-load tolerance for active patients). After authorization, the prosthetist orders the component, installs the L5826 addition onto the endoskeletal assembly, performs alignment, conducts dynamic gait training with the patient, and documents outcomes and any adjustments. Follow-up visits address tuning, skin inspection, and functional outcome measures.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier appended; standard reporting | Use when no special circumstance applies to the service. |