| External Cause | Code(s)a | Description |
|---|---|---|
| Falls | V00.1–V00.8 with 6th character=1 | Falls related to pedestrian conveyance |
| W00–W15, W17, W19 | Falls | |
| W16 with 6th character=2,W16.42, W16.92 | Fall, jump, or dive into water | |
| W18.1–W18.3 | Other falls | |
| Other external causesb | T14.19 | Suicide attempt |
| T15–T19 | Effects of foreign body entering through natural orifice | |
| T36–T50 with 6th character = 1,2,3,4 (except T36.9, T37.9, T39.9, T41.4, T42.7, T43.9, T45.9, T47.9, and T49.9 which have a 5th character=1,2,3,4) | Poisoning by drugs, medicaments, and biological substances | |
| T51–T65 | Toxic effects of substances chiefly nonmedicinal as to source | |
| T71–T74, T75.0–T75.4, T76 | Asphyxiation, Effects of deprivation, adult and child abuse, neglect, other maltreatment (suspected or confirmed), Effects of lightening, drowning, vibration, motion sickness, and electrocution | |
| V00.0, V00.1–V00.8 with 6th character = 2, 8 | Pedestrian on foot injured in collision with pedestrian conveyance | |
| V01–V99 | Transport related accident | |
| W16 with a 6th character=1, W16.41, W16.91 | Fall, jump, or diving into water causing drowning and submersion | |
| W18.0, W18.4 | Striking against object with subsequent fall, slipping, tripping, or stumbling without falling | |
| W20–X52 | Other external causes of accidental injury | |
| X71–X83 | Intentional self-harm | |
| X92–Y09 | Assault | |
| Y21–Y33 | Event of undetermined intent | |
| Y35–Y38 | Legal intervention, operations of war, military operations, and terrorism |
Include only cases with a seventh character A or missing (initial encounter).
Hip fracture-related visits were only considered related to another cause if they were not related to a fall (i.e., if a visit had both a fall and a non-fall external cause code, it was counted as a fall).