W20.1

Struck by object due to collapse of building

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 6 never code together

Excludes1

struck by object due to collapse of burning building (X00.2, X02.2)X00.2 X00.2 X02.2 X02.2

W20code

Excludes1

falling object in machinery accident (W24, W28-W31)W24 W28-W31
falling object in transport accident (V01-V99)V01-V99
object set in motion by explosion (W35-W40)W35-W40
object set in motion by firearm (W32-W34)W32-W34
struck by thrown sports equipment (W21.-)W21.-

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

7th character 3

A initial encounter

D subsequent encounter

S sequela

Instructional notes 4

W20code

Code first

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.S00-T88

Index entries leading here 3

Alongside this code 2 same parent — W20

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.