W33.03XS — Accidental discharge of machine gun, sequela
Is W33.03XS billable?
Yes — W33.03XS is billable for FY2027. W33.03XS is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. W33.03XS may be submitted for encounters from October 1, 2026 through September 30, 2027.
W33.03XS at a glance
| Code | W33.03XS |
|---|---|
| Description | Accidental discharge of machine gun, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in W33.03XS?
In W33.03XS, the 7th character S means sequela. The 7th character is required for W33.03XS to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is W33.03XS listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under W33.03, the nearest indexed parent of W33.03XS. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Discharge › firearm › machine gun › accidental (accidental)
Inclusion terms
Alternative wording in documentation that is classified to W33.03XS.
- Discharge of machine gun NOS
Excludes1 — never code together — inherited from W20-W49
The conditions below can never be reported together with W33.03XS 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 W33.03XS 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 W33.03XS existed?
W33.03XS 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.