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ICD-10-CM 2027 diagnosis code

W32.0Accidental handgun discharge

Not billable — use a more specific codeRequires 7th character

W32.0 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About W32.0

W32.0 is the ICD-10-CM diagnosis code for accidental handgun discharge. It belongs to category W32 (accidental handgun discharge and malfunction), block W20-W49 (exposure to inanimate mechanical forces) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within W32 (accidental handgun discharge and malfunction), W32.0 is specifically for accidental handgun discharge. Related codes cover malfunction (W32.1).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

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

Notes that apply from higher levels

Instructions written at a parent level also apply to W32.0.

› From W32 Accidental handgun discharge and malfunction
Includes
  • 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
Excludes1
  • 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)

Broader instructions also apply from W20-W49 Exposure to inanimate mechanical forces and Chapter 20: External causes of morbidity.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to W32.0.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about W32.0

Is W32.0 billable?

No. W32.0 is a header code. Report one of its more specific subcodes instead.