Assault by rifle, shotgun and larger firearm discharge (X94)

The ICD-10 code X94 and its subcategories are used to classify and document injuries resulting from assaults involving rifles, shotguns, and other larger firearms. These codes specify the type of firearm used and the timing of the medical encounter, such as initial treatment, subsequent care, or sequela (complications following the injury).

This section covers various specific firearm types including assault by shotgun (X94.0), hunting rifle (X94.1), machine gun (X94.2), and other or unspecified larger firearms (X94.8 and X94.9). Using synonyms like “assault by shotgun” or “assault by firearms” helps clarify that X94.0XXA refers to the initial encounter for an assault by shotgun injury. These detailed classifications assist medical coders and healthcare providers in accurately recording firearm-related assaults, capturing the precise weapon type and phase of treatment, which is critical for clinical documentation, injury surveillance, and billing purposes involving external causes of injury.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

  • The appropriate 7th character is to be added to each code from category X94

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela