W32Non-billableSave

W32 - Accidental handgun discharge and malfunction

ICD-10-CM Chapter 20: External causes of morbidity · W20-W49 Exposure to inanimate mechanical forces (W20-W49) · Top-level category · FY2027

Coding Guidance

W32 is a non-billable heading. Report one of the 2 more specific codes below.

7th Character

The appropriate 7th character is to be added to each code from category W32

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Includes, Excludes and Coding Notes

IncludesFrom W32

Conditions this code covers.

  • accidental discharge and malfunction of gun for single hand use
  • accidental discharge and malfunction of pistol
  • accidental discharge and malfunction of revolver
  • Handgun discharge and malfunction NOS
Excludes 1 — Not Coded HereFrom W32

Mutually exclusive: these conditions are never reported together with this code.

  • accidental airgun discharge and malfunction (W34.010, W34.110)
  • accidental BB gun discharge and malfunction (W34.010, W34.110)
  • accidental pellet gun discharge and malfunction (W34.010, W34.110)
  • accidental shotgun discharge and malfunction (W33.01, W33.11)
  • assault by handgun discharge (X93)
  • handgun discharge involving legal intervention (Y35.0-)
  • handgun discharge involving military or war operations (Y36.4-)
  • intentional self-harm by handgun discharge (X72)
  • Very pistol discharge and malfunction (W34.09, W34.19)
Excludes 1 — Not Coded HereFrom W20-W49 Exposure to inanimate mechanical forces (W20-W49)

Mutually exclusive: these conditions are never reported together with this code.

  • 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)
NotesFrom Chapter V00-Y99

Instructional notes from the ICD-10-CM tabular list.

  • 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.