W33
Non-billableAcc rifle, shotgun and larger firearm discharge and malfunct
Accidental rifle, shotgun and larger firearm discharge and malfunction
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- rifle, shotgun and larger firearm discharge and malfunction NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- 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)
- 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)
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (2)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code W33?
ICD-10-CM code W33 represents "Accidental rifle, shotgun and larger firearm discharge and malfunction". It is a non-billable header code — use a more specific child code for billing purposes.
Is W33 a billable code?
No, W33 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under W33.
What chapter is W33 in?
W33 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).
What codes cannot be used with W33?
W33 has Excludes1 notes indicating codes that cannot be used together with it, including: assault (X92-Y09); contact or collision with animals or persons (W50-W64); exposure to inanimate mechanical forces involving military or war operations (Y36.-, Y37.-); and 9 more.
What are the subcategories under W33?
W33 has 2 child codes, including: W33.0 (Accidental rifle, shotgun and larger firearm discharge), W33.1 (Accidental rifle, shotgun and larger firearm malfunction).
What are the UMLS CUIs for W33?
W33 is linked to 2 UMLS Concept Unique Identifiers: C2904403, C4290472. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.