ICD-10-CM Diagnosis Code W33.1

Injury due to explosion of rifle, shotgun and larger firearm (parts)

Injury due to malfunction of mechanism or component of rifle, shotgun and larger firearm

Injury due to piercing, cutting, crushing or pinching due to (by) slide trigger mechanism, scope or other gun part

Injury due to recoil of rifle, shotgun and larger firearm

Powder burn from rifle, shotgun and larger firearm

rifle, shotgun and larger firearm discharge and malfunction NOS

The appropriate 7th character is to be added to each code from category W33

accidental airgun discharge and malfunction (W34.010, W34.110)

accidental BB gun discharge and malfunction (W34.010, W34.110)

accidental handgun discharge and malfunction (W32.-)

accidental pellet gun discharge and malfunction (W34.010, W34.110)

assault by rifle, shotgun and larger firearm discharge (X94)

firearm discharge involving legal intervention (Y35.0-)

firearm discharge involving military or war operations (Y36.4-)

intentional self-harm by rifle, shotgun and larger firearm discharge (X73)

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.