W33.19XA is the authoritative medical code for Accidental malfunction of other larger firearm, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for accidental malfunction of other larger firearm, initial encounter (ICD-10-CM W33.19XA), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Accidental malfunction of other larger firearm, initial encounter is a billable ICD-10-CM diagnosis code W33.19A. Includes: rifle, shotgun and larger firearm discharge and malfunction NOS. Inclusion terms: Malfunction of other larger firearm NOS. Excludes1 (not coded here): 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; assault X92-Y09; contact or collision with animals or persons W50-W64; exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-); intentional self-harm X71-X83. 7th character: The appropriate 7th character is to be added to each code from category W33.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for W33.19XA in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- rifle, shotgun and larger firearm discharge and malfunction NOS
Inclusion Terms
Alternative terms the tabular list files under this code.
- Malfunction of other larger firearm NOS
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- 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
- assault X92-Y09
- contact or collision with animals or persons W50-W64
- exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-)
- intentional self-harm X71-X83
Frequently Asked Questions (FAQ) & Clinical Guidance
Does W33.19XA require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category W33.
What can't be coded together with W33.19XA?
Per official ICD-10-CM Excludes1 instructions, W33.19XA must not be reported together with: 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).
What conditions are included under W33.19XA?
Accidental malfunction of other larger firearm, initial encounter includes: Malfunction of other larger firearm NOS.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to W33.19XA in its code family, with their registry titles.
- W33 — Accidental rifle, shotgun and larger firearm discharge and malfunction
- W33.0 — Accidental rifle, shotgun and larger firearm discharge
- W33.00 — Accidental discharge of unspecified larger firearm
- W33.00XA — Accidental discharge of unspecified larger firearm, initial encounter
- W33.00XD — Accidental discharge of unspecified larger firearm, subsequent encounter
- W33.00XS — Accidental discharge of unspecified larger firearm, sequela
- W33.01 — Accidental discharge of shotgun
- W33.01XA — Accidental discharge of shotgun, initial encounter
- W33.01XD — Accidental discharge of shotgun, subsequent encounter
- W33.01XS — Accidental discharge of shotgun, sequela
View all 40 codes in the W33 family