ICD-10-CM > V00-Y99 > Y35-Y38 > Y38 > Y38.4 > Y38.4X > Y38.4X2 Y38.4X2 Terrorism involving firearms, civilian injured Non-Billable/Non-Specific Codes Y38.4X2A..., initial encounterY38.4X2D..., subsequent encounterY38.4X2S..., sequela