Summary & Overview
HCPCS A6560: Gradient Compression Stocking, Full Length Custom 30-40 mmHg
HCPCS Level II code A6560 denotes a custom, full-length (chap-style) gradient compression stocking providing 30–40 mmHg of pressure. These garments are clinically relevant for management of chronic venous disease, significant edema, and lymphedema and are commonly prescribed when off-the-shelf options are inadequate. Nationally, custom compression supplies like A6560 are significant because they involve higher unit costs, medical necessity determinations, and varied coverage rules across payers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of how A6560 is defined and used in clinical practice, common sites of service where the item is supplied, and typical billing considerations. The publication also summarizes benchmarks and policy-relevant points such as prior authorization patterns, documentation expectations for custom-fitted compression garments, and coding contexts where A6560 is selected over standard dimensions.
This summary prepares clinicians, billing staff, and policy analysts to understand the code's clinical role, payer landscape, and the primary operational factors that affect coverage and claims handling for custom gradient compression stockings.
Billing Code Overview
HCPCS Level II code A6560 describes a gradient compression stocking, full length/chap style, 30-40 mmHg, custom, each. The item is a custom-fitted, full-length stocking designed to provide graduated compression of 30-40 millimeters of mercury, typically used to manage chronic venous insufficiency, severe edema, lymphedema, or related circulatory conditions.
Service type: Custom fitted durable medical equipment / compression garment
Typical site of service: Outpatient clinic, durable medical equipment supplier, home health setting
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with chronic venous insufficiency and symptomatic varicosities is prescribed a custom full-length gradient compression stocking, 30–40 mmHg, A6560. The patient is measured in the clinic by a certified fitter following a vascular surgery or wound care consultation. The clinical workflow includes: initial evaluation by a vascular specialist or wound care clinician, documentation of diagnosis and medical necessity (for example, chronic venous insufficiency with edema or status post venous ulcer), order for a custom stocking due to limb shape or prior failed standard sizes, measurement and fitting appointment, delivery of the custom A6560 stocking, and follow-up to assess fit, skin tolerance, and therapeutic response. Typical sites of service are outpatient specialty clinics (vascular surgery, wound care, or prosthetics/orthotics shop), durable medical equipment (DME) supplier locations, and occasionally in an inpatient setting when ordered during hospital care prior to discharge.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when unusual time, effort, or technical difficulty in custom measurement or fabrication significantly exceeds typical requirements for A6560. |