These categories were motor vehicles (E810.0-E825.9, E929.0-E929.1, E988.5); falls (E833.0-E835.9, E843.x, E880.0-E888.9, E929.3); assaults, including self-inflicted injuries (E950.0-E969.9); combat, including blasts/explosions and incidents related to "friendly fire" (E921.8, E922
.3, E923.8, E979.2, E985.4, E990.0-999.1); and other (all other E-codes).
Ninth Revision (for death certificate data), and International Classification of Diseases, Ninth Revision, Clinical Modification (for hospital discharge data), codes E965.0-E965.4 (assault), E955.0-E955.4 (self-inflicted), E922
(unintentional), E970 (legal intervention), and E985.0-E985.4 (undetermined).
1971) for each of six body regions (head, face, chest, abdomen, extremities, and general) were calculated from International Classification of Diseases, 9th revision (ICD-9) diagnosis codes by the STR Indicator variables (1 yes, 0 = no) were created for motor vehicle crashes (ICD-9 E-codes E810-E819), bums (E890-E899, E924), and penetrating injuries (E920, E922
, E955, E956, E965, E966).
In January and February 1996, the ministry of health or the national statistics institute in each of the 26 countries were asked to provide denominator data and counts by sex and by 5-year age groups for the most recent year data were available for the number of suicides (International Classification of Diseases, Ninth Revision [ICD-9], codes E950.0-E959), homicides (E960.0-E969), suicides by firearm (E955.0-E955.4), homicides by firearm (E965.0-E965.4), unintentional deaths caused by firearm (E922
.0-E922.9), and firearm-related deaths for which intention was undetermined (E985.0-E985.4); 26 (96%) countries, including the United States, provided complete data(*).
E-codes used to classify intent include E922
.0-9 (unintentional), E955.0-4 (suicide), E965.0-4 (assault), E985.0-4 (unknown intent), and E970 (legal intervention).
In standard vital statistics tabulations, firearm-related deaths are recorded in four separate categories: homicides (International Classification of Diseases, Ninth Revision [ICD-9], codes E965.0-E965.4 and E970), suicides (ICD-9 codes E955.0-E955.4), unintentional (ICD-9) code E922
), and intent undetermined (ICD-9 codes E985.0-E985.4).
Unintentional firearm-related deaths were identified by the International Classification of Diseases, Ninth Revision, code E922
. Classification of counties as metropolitan and nonmetropolitan is based on metropolitan statistical areas designated by the U.S.