W33.00XA
W33.00XA: Accidental discharge of unspecified larger firearm, initial encounter
Billable / specific codeICD-10-CMPOA exempt
W33.00XA is a billable, specific ICD-10-CM code for accidental discharge of unspecified larger firearm, initial encounter. It is valid for submission on a claim.
Check W33.00XA with the rest of the claim: free scrubber7th character "A": initial encounter
The appropriate 7th character is to be added to each code from category W33
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Discharge of unspecified larger firearm NOS
Excludes1 inherited from the categories above W33.00XA
A category’s note binds every code beneath it.
Written on W33: Accidental rifle, shotgun and larger firearm discharge and malfunction
- 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)
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.