Several errors occurred in the paper by Fingerhut and Warner in the last issue of the journal (Inj Prev 2006;12:24–9). Six cells of the IMD matrix shown in Figure 1 have been changed to display the correct codes. The cells that have changed are as follows: vertebral column and internal organ injury; vertebral column and other specified injury; multiple body regions and unspecified injury; multiple injuries and upper extremity injuries; multiple injuries and other lower extremity injuries and other lower extremity and other specified injury. The correct table is on the Injury Preventionwebsite: http://ip.bmjjournals.com/cgi/content/full/12/1/24/DC1