W33 ICD-10-CM Code: Accidental rifle, shotgun and larger firearm discharge and malfunction
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
W33Accidental rifle, shotgun and larger firearm discharge and malfunction
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where W33 sits
- 1
Chapter 20
External causes of morbidity (V00-Y99)
- 2
Section
Accidents (V00-X58)
- 3
Category W33
Accidental rifle, shotgun and larger firearm discharge and malfunction
- 4
Code W33
Accidental rifle, shotgun and larger firearm discharge and malfunction
More specific choices
Codes under W33
W33 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for W33.
Code first
No “code first” instruction is listed for W33.
Use additional code
No “use additional code” instruction is listed for W33.
Excludes1
Conditions that should not be 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 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)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for W33.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code W33 mean?
W33 is the FY 2027 U.S. ICD-10-CM code for “Accidental rifle, shotgun and larger firearm discharge and malfunction.”
Is W33 a billable or specific ICD-10-CM code?
No. W33 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is W33 located in ICD-10-CM?
W33 is listed in Chapter 20, External causes of morbidity (V00-Y99), within Accidents (V00-X58) (V00–X58), under category W33, Accidental rifle, shotgun and larger firearm discharge and malfunction.
What coding notes are listed for W33?
No inclusion terms are listed for W33 in this reference record. No code-first instruction is listed. Excludes1 notes: 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). No Excludes2 note is listed.
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