W40.1XXA
W40.1XXA — Explosion of explosive gases, initial encounter
Billable / specific codeICD-10-CMPOA exempt
W40.1XXA is a billable, specific ICD-10-CM code for explosion of explosive gases, initial encounter. It is valid for submission on a claim.
7th character "A" — initial encounter
The appropriate 7th character is to be added to each code from category W40
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Explosion of acetylene
- Explosion of butane
- Explosion of coal gas
- Explosion in mine NOS
- Explosion of explosive gas
- Explosion of fire damp
- Explosion of gasoline fumes
- Explosion of methane
- Explosion of propane
Risk adjustment
W40.1XXA 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.
Related codes at this level
Codes that share W40.1. If W40.1XXA is not quite right, the correct code is usually one of these.
Questions about W40.1XXA
- Is W40.1XXA a billable ICD-10-CM code?
- Yes. W40.1XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does W40.1XXA sit in the tabular list?
- External causes of morbidity (V00-Y99), in the block Exposure to inanimate mechanical forces (W20-W49).