The 2006 updates to the Current Procedural Terminology, Fourth Edition, (CPT-4) and Healthcare Common Procedure Coding System (HCPCS) Level II codes become effective for Medicare on January 01, 2006. The Medi-Cal program has not yet adopted the 2006 updates. Do not use 2006 codes to bill for Medi-Cal services until notified to do so in a future Medi-Cal Update.