Published by the American Academy of Orthopaedic SurgeonsR, XLite is Code Xs builtin companion for immediate, on the go coding. The robust application offers a full range of orthopaedic CPT codes, ICD9 codes and RVUs. The application allows you to search by code and body site, save and email patient information with the applicable code.CodeX 2012 subscribers can contact support@aaos.org for username and password information to access the application after downloading. If you are not a CodeX 2012 subscriber then you will not be able to access the application