W39
W39 — Discharge of firework
Non-billable headerICD-10-CM
W39 is a non-billable header ICD-10-CM code for discharge of firework. 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 code W39
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
W39 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.
How W39 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to W39.
- Fireworks(explosion)
- Discharge›firework(s)
- Explosion›fireworks
Code to one of these instead W39
3 child codes. Green means billable.
Questions about W39
- Is W39 a billable ICD-10-CM code?
- No. W39 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does W39 sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).