Coding and coverage · ICD-10-CM

W33 › W33.0

W33.01 Accidental discharge of shotgun

Not billable (header)Chapter 20

This code needs a 7th character (use X as a placeholder for missing characters).

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Codes under this one

  • W33.01XA Accidental discharge of shotgun, initial encounter
  • W33.01XD Accidental discharge of shotgun, subsequent encounter
  • W33.01XS Accidental discharge of shotgun, sequela

Instructional notes

Chapter 20

Notes
  • This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.

W33

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • 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)
Includes
  • rifle, shotgun and larger firearm discharge and malfunction NOS
7th charactersThe appropriate 7th character is to be added to each code from category W33
  • A initial encounter
  • D subsequent encounter
  • S sequela

This code

Inclusion terms
  • Discharge of shotgun NOS

Chapter 20: External causes of morbidity · V00-X58 Accidents (V00-X58)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.