W33.0 — Accidental rifle, shotgun and larger firearm discharge
W33.0 is a non-billable header ICD-10-CM code for accidental rifle, shotgun and larger firearm discharge. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category W33
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with W33.0
These codes carry an Excludes1 note pointing at W33.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading W33.0 alone.
- W32Accidental handgun discharge and malfunction
Risk adjustment
W33.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead W33.0
5 child codes. Green means billable.
Related codes at this level
Codes that share W33. If W33.0 is not quite right, the correct code is usually one of these.
Questions about W33.0
- Is W33.0 a billable ICD-10-CM code?
- No. W33.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does W33.0 sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).