Table 1.
Mechanisms of injury and ICD-9 and ICD-10 codes for external causes of injury
| Mechanism of injury | ICD-9 codes | ICD-10 codes |
|---|---|---|
| Included in study | ||
| Falls | E880-E888 | W00-W19 |
| Injuries to pedal cyclists | E810-E819 (with 4th digit .6) E826-E829 (with 4th digit .1) | V10-V19 |
| Injuries to pedestrians | E810-E819 (with 4th digit .7) E826-E829 (with 4th digit .0) | V01-V09 |
| Other transport injuries | E800-E807, E810-E819 (with 4th digit .0-.5, .8-.9) E820-E825, E826-E829 (with 4th digit .2-.4, .8-.9) E830-E848 | V20-V99 |
| Injuries from fire, smoke, and hot objects or fluids | E890-E899 E924 (with 4th digit .0, .8) | X00-X19 |
| Poisoning or contact with corrosive substances | E850-E858 E860-E869 E924 (with 4th digit .1) | X40-X49 |
| All other unintentional injury mechanisms | E900-E923 E924 (with 4th digit .9) E925-E928 E980-E989 | W20-W45 W49-W60 W64-W94 W99, X20-X39 X50-X59 Y10-Y34 Y90-Y98 |
| Excluded from study | ||
| Misadventures to patients during surgical and medical care or complications of medical and surgical care | E870-E879 | Y40-Y84 |
| Late effects of unintentional injury or sequelae of external causes of injury | E929 | Y85-Y89 |
| Drugs, medicines, and biological substances causing adverse effects in therapeutic use | E930-E949 | — |
| Suicide and self inflicted injury or intentional self harm | E950-E959 | X60-X84 |
| Homicide and injury purposely inflicted by other people or assault | E960-E969 | X85-Y09 |
| Legal intervention or legal intervention and operations of war | E970-E978 | Y35-Y36 |