W33.1

Non-Billable

ChapterV00–Y99

Ranksubcategory

Official Description

Accidental rifle, shotgun and larger firearm malfunction

Use a more specific code (5 billable)

W33.10Accidental malfunction of unspecified larger firearm W33.11Accidental malfunction of shotgun W33.12Accidental malfunction of hunting rifle W33.13Accidental malfunction of machine gun W33.19Accidental malfunction of other larger firearm

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 20: External Causes of Morbidity (V00-Y99).

Instructional Notes

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

General instructions are available for the parent sections:

View W20-W49 Notes View W33 Notes

Clinical Hierarchy

BillableHas subcodes

CH20External causes of morbidity (V00-Y99)

W20-W49Exposure to inanimate mechanical forces (W20-W49)

W33Accidental rifle, shotgun and larger firearm discharge and malfunction

W33.1Accidental rifle, shotgun and larger firearm malfunctionNot billable

W33.10Accidental malfunction of unspecified larger firearmBillable

W33.11Accidental malfunction of shotgunBillable

W33.12Accidental malfunction of hunting rifleBillable

W33.13Accidental malfunction of machine gunBillable

W33.19Accidental malfunction of other larger firearmBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to W33.1:

categoryW33

Accidental rifle, shotgun and larger firearm discharge and malfunction

View context instructions

Exposure to inanimate mechanical forces (W20-W49)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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