Support surfaces are specialized pressure-redistributing devices designed to prevent or treat pressure injuries. While these surfaces (including low air loss mattresses) are commonly used in hospitals for both prevention and treatment, Medicare coverage in the home setting is much more limited and specific. It’s crucial to understand these differences when planning patient discharges or making referrals.

A common misconception is that low air loss mattresses can be ordered for preventative use at home, similar to hospital practice. However, Medicare will only cover Group 2 support surfaces (including low air loss mattresses) in the home setting when treating existing qualifying pressure ulcers or following specific surgical interventions as outlined in this guide. Preventative use, regardless of risk level, is not a covered indication.

Additionally, all Group 2 support surfaces(low airloss mattresses) now require Prior Authorization before delivery. This process typically takes 5-7 business days, sometimes longer if additional documentation is needed. 

When planning discharges, it’s essential to:

• Start the authorization process well before the planned discharge date

• Submit all relevant wound care documentation, including measurements and staging

• Include documentation of previous treatments and their outcomes

• Provide clear evidence of medical necessity based on Medicare criteria

This guide will help you understand the specific coverage criteria, documentation requirements, and authorization process to ensure your patients receive appropriate coverage when medically necessary.