W33
Non-billableAccidental rifle, shotgun and larger firearm discharge and malfunction
W33 is the ICD-10-CM code for Accidental rifle, shotgun and larger firearm discharge and malfunction. It is a non-billable category code — use a more specific child code such as W33.0 for billing.
- Status
- Header (non-billable)
- Chapter
- V00-Y99
- Subcodes
- 2
- Edition
- FY2026
V00-Y99 External causes of morbidity
Includes
- •rifle, shotgun and larger firearm discharge and malfunction NOS
Excludes1 — not coded here
- •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)
Frequently asked questions
- What is ICD-10 code W33?
- W33 is the ICD-10-CM code for "Accidental rifle, shotgun and larger firearm discharge and malfunction". It falls under V00-Y99 External causes of morbidity.
- Is W33 a billable code?
- No — W33 is a non-billable header code. Use a more specific child code (such as W33.0) for billing.
- What is excluded from W33?
- Excludes1 (not coded here): 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).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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