Summary & Overview
HCPCS L6689: Upper Extremity Frame-Type Socket, Shoulder Disarticulation
HCPCS Level II code L6689 identifies an upper extremity prosthetic addition: a frame-type socket for shoulder disarticulation. This code denotes a specialized prosthetic socket component used when the limb is absent at the shoulder level and is relevant for durable medical equipment and prosthetics billing nationwide. Accurate use of L6689 ensures appropriate classification of prosthetic components, impacts payment determination, and supports consistent clinical documentation for complex upper-limb prosthetic care.
Key payers in the national context include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find coverage and billing considerations across major payers, typical sites of service, and common clinical contexts for prosthetic supply following shoulder disarticulation. The publication outlines coding benchmarks, payer policy highlights where available, and clinical context for fitting and provision of a frame-type socket. It also summarizes typical documentation elements and billing line-items associated with prosthetic additions. Data not available in the input is noted where payer-specific policy details, associated taxonomies, ICD-10 diagnoses, and related codes are absent.
Billing Code Overview
HCPCS Level II code L6689 describes an upper extremity addition, frame type socket, shoulder disarticulation. This code applies to a prosthetic component designed to replace an absent upper limb at the level of shoulder disarticulation, featuring a framed socket construction intended to interface with the residual anatomy and prosthetic suspension system.
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Service type: Prosthetic device addition for upper extremity, specifically a frame-type socket for shoulder disarticulation
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Typical site of service: Prosthetics and orthotics clinic or outpatient prosthetic specialty center
Clinical & Coding Specifications
Clinical Context
A patient with a shoulder-level amputation (shoulder disarticulation) presents to a prosthetics clinic for fabrication of an upper extremity frame-type socket addition. Typical patients include adults who underwent traumatic or oncologic shoulder disarticulation and require a custom frame-type socket to interface with a prosthetic harness or modular prosthetic components. The clinical workflow begins with a prosthetist evaluation: review of medical history, examination of residual limb and scar tissue, assessment of shoulder girdle strength and range of motion, and discussion of functional goals (cosmetic, prehension, attachment of terminal device). A cast or digital scan of the shoulder and torso is obtained to capture anatomy for a frame-type socket that provides suspension and load distribution. The laboratory fabricates the frame-type socket addition (thermoplastic or laminated composite) and integrates attachment features for the prosthetic components. A clinical fitting appointment follows for alignment, pressure relief adjustments, and training in donning/doffing. Subsequent visits address functional tuning, repairs, and component upgrades. Typical site of service is an outpatient prosthetics and orthotics clinic or specialty prosthetics laboratory; fittings may occur in a hospital outpatient rehabilitation department when medically complex. Payers involved commonly include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare for coverage review and prior authorization when required.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 |