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Occupational Injury and Illness Classification Manual
The Occupational Injury and Illness Classification System (OIICS) Manual provides the classification system used to code the case characteristics of injuries, illnesses, and fatal injuries in the Survey of Occupational Injuries and Illnesses (SOII) and the Census of Fatal Occupational Injuries (CFOI). This manual contains the rules of selection, code descriptions, code titles, and indices, for the following code structures: Nature of Injury or Illness, Part of Body Affected, Source of Injury or Illness, Event or Exposure, and Secondary Source of Injury or Illness.

The OIICS was originally developed and released in 1992. Clarifications and corrections were incorporated into the manual in 2007. These were used to code data for years up to and including 2010 (PDF 956K). Because of the minor changes involved in the 2007 revision, that version of the OIICS Manual may be used as a reference source for SOII and CFOI data for 1992-2010.

Additional Resource: Injuries, Illnesses, and Fatalities | Workplace Homicides