Code that identifies coding system used for occupation and industry. This is a central cancer registry data item (i .e., codes should be applied by a central or regional registry rather than collected from reporting facilities).
Formerly Occup/Ind Coding System.
Note: 2000 Census codes for occupation and industry are recommended for tumors diagnosed on or after January 1, 2003.
26 The 1990 Census codes are recommended for tumors diagnosed before January 1, 2003.
24 For more information, see the U.S. Bureau of the Census website at:
http://www.census.gov/hhes/www/ioindex/ioindex.html.