Of particular importance are the changes to the Biosystematic Codes. Codes referring to viruses have been restructured as have many of the virus classifiers. In addition, Biosystematic Codes are now uniformly applied throughout the file. Please click through the link for a complete listing of changed codes and terms.

• Old code numbers 01000-02709
• Old code numbers 02710-05514
• Old code numbers 05600-86465
• Download complete chart in pdf format