W33.03
⚠ Non-billable
Accidental discharge of machine gun
ICD-10-CM · FY2026 · External Causes of Morbidity
Code
W33.03
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
External Causes of Morbidity
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code W33.03?
ICD-10-CM code W33.03 represents Accidental discharge of machine gun. It is a non-billable header code requiring a more specific subcategory in the External Causes of Morbidity chapter, effective October 1, 2025 – September 30, 2026.
Is W33.03 billable?
No. W33.03 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is W33.03 in?
W33.03 belongs to the External Causes of Morbidity chapter (V00–Y99) of ICD-10-CM.
Related codes in the W33 category
W33
Accidental rifle, shotgun and larger firearm discharge and malfunction
Non-billable
W33.0
Accidental rifle, shotgun and larger firearm discharge
Non-billable
W33.1
Accidental rifle, shotgun and larger firearm malfunction
Non-billable
W33.00
Accidental discharge of unspecified larger firearm
Non-billable
W33.01
Accidental discharge of shotgun
Non-billable
W33.02
Accidental discharge of hunting rifle
Non-billable
W33.09
Accidental discharge of other larger firearm
Non-billable
W33.10
Accidental malfunction of unspecified larger firearm
Non-billable
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