OpenEMR
OpenEMR[1] is a medical practice management, electronic medical records, prescription writing, and medical billing application.
It is a replacement for medical applications such as Medical Manager, Health Pro, and Misys. It features support for EDI billing to clearing houses such as ProxyMed and ZirMED using ANSI X12. Medical claim and accounts receivable are accomplished through SQL-Ledger, which has been customized. Calendar features include categories for appointment types, colors associated with appointment types, repeating appointments, and the ability to restrict appointments based on type. There is an advanced medical claim management interface, accounting for EOB entry, customization to work with a clearing house for automated 835 or ERA entry against outstanding medical claims, customizable medical encounter forms, support for voice recognition software, electronic or scanned digital document management for records, and support for HL7 messages.