Summary & Overview
HCPCS Level II A6540: Waist-Length Gradient Compression Stocking, 30-40 mmHg
HCPCS Level II code A6540 represents a waist-length gradient compression stocking providing 30–40 mmHg of pressure, commonly supplied as durable medical equipment for patients requiring therapeutic compression for venous insufficiency, lymphedema management, or post-thrombotic syndrome. Nationally, compression stockings like this are a widely used noninvasive intervention that can reduce complications and improve quality of life for patients with chronic venous disorders and related conditions.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of coding intent and clinical context, typical sites of service and supply, and what to expect in payer coverage patterns. The publication summarizes benchmark considerations, common billing modifiers and claims handling practices, and clinical scenarios where a 30–40 mmHg waist-length stocking is typically applied.
This summary is aimed at billing professionals, procurement teams, and clinicians seeking a national-level reference for classification and typical use of A6540. Data not available in the input will be noted where applicable.
Billing Code Overview
HCPCS Level II code A6540 describes a gradient compression stocking, waist length, 30-40 mmHg, each. This item is a graduated compression garment designed to provide therapeutic compression from the ankle upward, extending to the waist. The service type is durable medical equipment / compression therapy supply, and the typical site of service is outpatient supply retail, durable medical equipment provider, or home use.
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Clinical & Coding Specifications
Clinical Context
A typical patient is a 68-year-old ambulatory female with chronic venous insufficiency and symptomatic varicosities of the lower extremities who presents to a durable medical equipment (DME) supplier or vascular clinic for compression therapy. She reports leg swelling, aching, and mild-to-moderate venous stasis changes confined below the waist; the clinician documents a need for waist-length gradient compression stockings with 30–40 mmHg compression to reduce edema, improve venous return, and manage symptoms. The DME workflow includes: evaluation and measurement by trained staff or a certified fitter; documentation of medical necessity in the patient’s chart linking the diagnosis to compression therapy; issuance of a prescription specifying A6540 (waist length, 30–40 mmHg, each); verification of payer coverage and applicable modifiers; fitting and patient education on wear time and care; and billing to the patient’s insurer or Medicare using the HCPCS code A6540 with applicable modifier(s). Follow-up includes reassessment of symptom relief and fit, and replacement ordering as clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when documentation supports substantially greater work than typical for furnishing custom fitting or extensive patient education beyond standard stocking issuance |