FY2017
Effective from
- Inherited rules changed
Accidental rifle, shotgun and larger firearm malfunction
Category — select a more specific code
CDC/NCHS · FY2017A — initial encounter
D — subsequent encounter
S — sequela
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
Latest recorded change · FY2017
Effective from
Accidental rifle, shotgun and larger firearm malfunction
Category — select a more specific code
CDC/NCHS · FY2017| All editions | Effective from | Code history |
|---|---|---|
| FY2016 | 2015-10-01 | First observed |
| FY2017 | 2016-10-01 | Inherited rules changed |
| FY2018 | 2017-10-01 | No tabular change |
| FY2019 | 2018-10-01 | No tabular change |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | No tabular change |
| FY2021 · 01-01 | 2021-01-01 | No tabular change |
| FY2022 | 2021-10-01 | No tabular change |
| FY2022 · 04-01 | 2022-04-01 | No tabular change |
| FY2023 | 2022-10-01 | No tabular change |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | No tabular change |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | No tabular change |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
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.
rifle, shotgun and larger firearm discharge and malfunction NOS
The appropriate 7th character is to be added to each code from category W33
A — initial encounter
D — subsequent encounter
S — sequela
W33.10Accidental malfunction of unspecified larger firearmCategory · further specificity requiredW33.11Accidental malfunction of shotgunCategory · further specificity requiredW33.12Accidental malfunction of hunting rifleCategory · further specificity requiredW33.13Accidental malfunction of machine gunCategory · further specificity requiredW33.19Accidental malfunction of other larger firearmCategory · further specificity requiredOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| W33.0 | Accidental rifle, shotgun and larger firearm discharge | Category · further specificity required |
Official titles and instructions are preserved in their source language. Official sources ↗
Excludes 1 · injury caused by firearms malfunction (W32.1, W33.1-, W34.1-)