ICD-10-CM 2027 diagnosis code

Y23Rifle, shotgun and larger firearm discharge, undetermined intent

Not billable — use a more specific code

Y23 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.Short description: Rifle, shotgun and larger firearm discharge, undet intent

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About Y23

Y23 is the ICD-10-CM diagnosis code for rifle, shotgun and larger firearm discharge, undetermined intent. It belongs to block Y21-Y33 (event of undetermined intent) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Y23.0 (intent), Y23.1 (intent), Y23.2 (intent), Y23.3 (intent), Y23.8 (intent) and Y23.9 (intent).

The conditions in its Excludes2 note aren't part of Y23, but may be coded alongside it if the patient has both: airgun (Y24.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under Y23

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

airgun (Y24.0)

Notes that apply from higher levels

Instructions written at a parent level also apply to Y23.

Broader instructions also apply from Y21-Y33 Event of undetermined intent and Chapter 20: External causes of morbidity.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about Y23

Is Y23 billable?: No. Y23 is a header code. Report one of its more specific subcodes instead.