W40.1 — Explosion of explosive gases
Is W40.1 billable?
No — W40.1 is a non-billable header code. W40.1 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath W40.1.
W40.1 at a glance
| Code | W40.1 |
|---|---|
| Description | Explosion of explosive gases |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is W40.1 listed in the External Cause Index?
These are the routes through the External Cause of Injuries Index that lead to W40.1 — how the injury happened, rather than what the injury was.
- Explosion › acetylene (accidental) (of) (with secondary fire)
- Explosion › anesthetic gas in operating room (accidental) (of) (with secondary fire)
- Explosion › butane (accidental) (of) (with secondary fire)
- Explosion › coal gas (accidental) (of) (with secondary fire)
- Explosion › fire-damp (accidental) (of) (with secondary fire)
- Explosion › gas (accidental) (of) (with secondary fire)
- Explosion › gasolinenot in moving motor vehicle (accidental) (of) (with secondary fire)
- Explosion › methane (accidental) (of) (with secondary fire)
- Explosion › mine (accidental) (of) (with secondary fire)
- Explosion › propane (accidental) (of) (with secondary fire)
- Ignition › anesthetic gas in operating room (accidental)
- Explosion › explosive › gas (accidental) (of) (with secondary fire)
Inclusion terms
Alternative wording in documentation that is classified to W40.1.
- 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
Excludes1 — never code together — inherited from W20-W49
The conditions below can never be reported together with W40.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from W40
The conditions below can never be reported together with W40.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under W40.1? (3)
How long has W40.1 existed?
W40.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.