Instruction Source: W20.0XXA
Struck by falling object in cave-in, initial encounter
Instruction Source: W20.0
Struck by falling object in cave-in
Excludes 2 (Not Included Here)
- asphyxiation due to cave-in (T71.21)
Instruction Source: W20
Struck by thrown, projected or falling object
Excludes 1 (Mutually Exclusive)
- falling object in machinery accident (W24, W28-W31)
- falling object in transport accident (V01-V99)
- object set in motion by explosion (W35-W40)
- object set in motion by firearm (W32-W34)
- struck by thrown sports equipment (W21.-)
Instruction Source: W20-W49
Exposure to inanimate mechanical forces (W20-W49)
Excludes 1 (Mutually Exclusive)
- assault (X92-Y09)
- contact or collision with animals or persons (W50-W64)
- exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)
- intentional self-harm (X71-X83)
Instruction Source: V00-Y99
External causes of morbidity
Clinical Notes
- This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.