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W33.1

Non-billable

Accidental rifle, shotgun and larger firearm malfunction

W33.1 is the ICD-10-CM code for Accidental rifle, shotgun and larger firearm malfunction. It is a non-billable category code — use a more specific child code such as W33.10 for billing.

Status
Header (non-billable)
Chapter
V00-Y99
Parent
W33
Subcodes
5
Edition
FY2026

V00-Y99 External causes of morbidity

Includes

  • •Injury due to explosion of rifle, shotgun and larger firearm (parts)
  • •Injury due to malfunction of mechanism or component of rifle, shotgun and larger firearm
  • •Injury due to piercing, cutting, crushing or pinching due to (by) slide trigger mechanism, scope or other gun part
  • •Injury due to recoil of rifle, shotgun and larger firearm
  • •Powder burn from rifle, shotgun and larger firearm

Frequently asked questions

What is ICD-10 code W33.1?
W33.1 is the ICD-10-CM code for "Accidental rifle, shotgun and larger firearm malfunction". It falls under V00-Y99 External causes of morbidity.
Is W33.1 a billable code?
No — W33.1 is a non-billable header code. Use a more specific child code (such as W33.10) for billing.
What are the subcodes of W33.1?
W33.1 has 5 more specific child codes, including W33.10, W33.11, W33.12.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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