AutoICD API

W33.1

Non-billable

Accidental rifle, shotgun and larger firearm malfunction

Accidental rifle, shotgun and larger firearm malfunction

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

W20-W49

Parent Code

W33

Child Codes

5

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Injury due to explosion of rifle, shotgun and larger firearm (parts)
  • Injury due to malfunction of mechanism or component of rifle, shotgun and larger firearm
  • Injury due to piercing, cutting, crushing or pinching due to (by) slide trigger mechanism, scope or other gun part
  • Injury due to recoil of rifle, shotgun and larger firearm
  • Powder burn from rifle, shotgun and larger firearm

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)

Child Codes (5)

W33.10

Accidental malfunction of unspecified larger firearm

W33.11

Accidental malfunction of shotgun

W33.12

Accidental malfunction of hunting rifle

W33.13

Accidental malfunction of machine gun

W33.19

Accidental malfunction of other larger firearm

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code W33.1?

ICD-10-CM code W33.1 represents "Accidental rifle, shotgun and larger firearm malfunction". It is a non-billable header code — use a more specific child code for billing purposes.

Is W33.1 a billable code?

No, W33.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 5 child codes under W33.1.

What chapter is W33.1 in?

W33.1 is in Chapter 21: External Causes of Morbidity (codes V00-Y99).

What codes cannot be used with W33.1?

W33.1 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 W33.1?

W33.1 has 5 child codes, including: W33.10 (Accidental malfunction of unspecified larger firearm), W33.11 (Accidental malfunction of shotgun), W33.12 (Accidental malfunction of hunting rifle), W33.13 (Accidental malfunction of machine gun), and 1 more.

What are the UMLS CUIs for W33.1?

W33.1 is linked to 6 UMLS Concept Unique Identifiers: C2904434, C2904429, C2904430, C2904431, C2904432, and 1 more. 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.