In simple words: Injury or other adverse effect due to the discharge of a handgun where it's unclear whether it was accidental or intentional.

Discharge of a handgun with undetermined intent. This includes discharge of a pistol or revolver where intent cannot be determined.It excludes air pistols and very pistols (Y24.8).

Example 1: A patient presents to the emergency room with a gunshot wound to the foot from a handgun. The patient claims they were cleaning the gun and it accidentally discharged. However, the circumstances raise suspicion of a possible suicide attempt. Without definitive evidence to support either accidental or intentional injury, Y22 is appropriate., Police bring an individual to the hospital with a gunshot wound after responding to a domestic dispute. Details of the event are unclear, and it cannot be determined if the discharge was accidental or intentional during the altercation. Documentation clearly states the intent is undetermined hence Y22 is assigned., A patient is found unconscious with a self-inflicted handgun wound, but they left no note or any clear indication of intent. Without definitive evidence to support suicide, and no witnesses, Y22 is assigned.

Documentation must clearly state the intent of the handgun discharge could not be determined. Details surrounding the incident should be thoroughly documented, including patient statements, witness accounts (if any), and examination findings. If intent is later determined, the code should be updated.

** This code is used for statistical purposes to track injuries and adverse effects from events with undetermined intent. It is important to differentiate from accidental or intentional injuries when possible to ensure accurate reporting.