Y23.9Header code — not billable
Unspecified larger firearm discharge, undetermined intent
- Chapter
- 20. External causes of morbidity
- Category
- Y23
- Effective date
- October 1, 2026
Related codes in category Y23
Y23Rifle, shotgun and larger firearm discharge, undet intentY23.0Shotgun discharge, undetermined intentY23.0XXAShotgun discharge, undetermined intent, initial encounterYesY23.0XXDShotgun discharge, undetermined intent, subsequent encounterYesY23.0XXSShotgun discharge, undetermined intent, sequelaYesY23.1Hunting rifle discharge, undetermined intentY23.1XXAHunting rifle discharge, undetermined intent, init encntrYesY23.1XXDHunting rifle discharge, undetermined intent, subs encntrYesY23.1XXSHunting rifle discharge, undetermined intent, sequelaYesY23.2Military firearm discharge, undetermined intentY23.2XXAMilitary firearm discharge, undetermined intent, init encntrYesY23.2XXDMilitary firearm discharge, undetermined intent, subs encntrYes
Frequently asked questions
What is ICD-10 code Y23.9?
Y23.9 is an ICD-10-CM diagnosis code for Unspecified larger firearm discharge, undetermined intent.
Is Y23.9 a billable code?
No. Y23.9 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Y23.9 in?
Y23.9 falls under Chapter 20: External causes of morbidity.
When did Y23.9 become effective?
Y23.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Y23.9?
Y23.9 belongs to category Y23, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.