2023

  1. ICD-10-CM Codes
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  2. V00-Y99
    3. ›
  3. W20-W49
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  4. W32-
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  5. 2023 ICD-10-CM Diagnosis Code W32.1

2023 ICD-10-CM Diagnosis Code W32.1

Accidental handgun malfunction

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • W32.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM W32.1 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of W32.1 - other international versions of ICD-10 W32.1 may differ.
ICD-10-CM Coding Rules
  • W32.1 describes the circumstance causing an injury, not the nature of the injury.
Applicable To
  • Injury due to explosion of handgun (parts)
  • Injury due to malfunction of mechanism or component of handgun
  • Injury due to recoil of handgun
  • Powder burn from handgun
The following code(s) above W32.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to W32.1:
  • V00-Y99
    2023 ICD-10-CM Range V00-Y99

    External causes of morbidity

    Note
    • 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.
    External causes of morbidity
  • W20-W49
    2023 ICD-10-CM Range W20-W49

    Exposure to inanimate mechanical forces

    Type 1 Excludes
    • 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)
    Exposure to inanimate mechanical forces
  • W32
    ICD-10-CM Diagnosis Code W32

    Accidental handgun discharge and malfunction

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    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
    Type 1 Excludes
    • 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)
    Accidental handgun discharge and malfunction
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
Code annotations containing back-references to W32.1:
  • Type 1 Excludes: W23
    ICD-10-CM Diagnosis Code W23

    Caught, crushed, jammed or pinched in or between objects

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • injury caused by cutting or piercing instruments (W25-W27)
    • injury caused by firearms malfunction (W32.1, W33.1-, W34.1-)
    • injury caused by lifting and transmission devices (W24.-)
    • injury caused by machinery (W28-W31)
    • injury caused by nonpowered hand tools (W27.-)
    • injury caused by transport vehicle being used as a means of transportation (V01-V99)
    • injury caused by struck by thrown, projected or falling object (W20.-)

External Cause Index entries containing back-references to W32.1:
  • Explosion (accidental) (of) (with secondary fire) W40.9
    ICD-10-CM Diagnosis Code W40.9

    Explosion of unspecified explosive materials

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Explosion NOS
    • firearm (parts) W34.19
      ICD-10-CM Diagnosis Code W34.19

      Accidental malfunction from other specified firearms

        2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
      Applicable To
      • Accidental malfunction from Very pistol [flare]
      • hangun W32.1
  • Malfunction (mechanism or component) (of)
    • firearm W34.10
      ICD-10-CM Diagnosis Code W34.10

      Accidental malfunction from unspecified firearms or gun

        2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
      Applicable To
      • Firearm malfunction NOS
      • handgun W32.1
  • Powder burn (by) (from)
    • handgun W32.1
  • Recoil
    • handgun W32.1

ICD-10-CM Codes Adjacent To W32.1
W31.89XS …… sequela
W31.9 Contact with unspecified machinery
W31.9XXA …… initial encounter
W31.9XXD …… subsequent encounter
W31.9XXS …… sequela
W32 Accidental handgun discharge and malfunction
W32.0 Accidental handgun discharge
W32.0XXA …… initial encounter
W32.0XXD …… subsequent encounter
W32.0XXS …… sequela
W32.1 Accidental handgun malfunction
W32.1XXA …… initial encounter
W32.1XXD …… subsequent encounter
W32.1XXS …… sequela
W33 Accidental rifle, shotgun and larger firearm discharge and malfunction
W33.0 Accidental rifle, shotgun and larger firearm discharge
W33.00 Accidental discharge of unspecified larger firearm
W33.00XA …… initial encounter
W33.00XD …… subsequent encounter
W33.00XS …… sequela
W33.01 Accidental discharge of shotgun

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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