CMS has issued its July quarterly update to the 2010 DMEPOS fee schedule. The update provides payment amounts for certain new codes, clarifies the services that must be furnished when billing HCPCS code A4221 (Supplies for Maintenance of Drug Infusion Catheter), provides that two modifiers for repair and replacement of an item are now also available for use with prosthetic and orthotic items, and revises the useful lifetime expectancy for certain equipment.