W33.19XA — Accidental malfunction of other larger firearm, initial encounter
Is W33.19XA billable?
Yes — W33.19XA is billable for FY2027. W33.19XA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. W33.19XA may be submitted for encounters from October 1, 2026 through September 30, 2027.
W33.19XA at a glance
| Code | W33.19XA |
|---|---|
| Description | Accidental malfunction of other larger firearm, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in W33.19XA?
In W33.19XA, the 7th character A means initial encounter. The 7th character is required for W33.19XA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W33.19XA listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W33.19, the nearest indexed parent of W33.19XA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Powder burn › larger firearm › specified NEC (by) (from)
- Recoil › larger firearm › specified NEC
- Explosion › firearmNEC › larger firearm › specified NEC (accidental) (of) (with secondary fire)
- Malfunction › firearm › larger firearm › specified NEC (mechanism or component) (of)
Inclusion terms
Alternative wording in documentation that is classified to W33.19XA.
- Malfunction of other larger firearm NOS
Excludes1 — never code together — inherited from W20-W49
The conditions below can never be reported together with W33.19XA 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 W33
The conditions below can never be reported together with W33.19XA on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- 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)
How long has W33.19XA existed?
W33.19XA 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.