ICD-10-CM > S00-T88 > S20-S29 > S27 > S27.4 > S27.41 S27.41 Primary blast injury of bronchus Non-Billable/Non-Specific Applicable To Blast injury of bronchus NOS Codes S27.411Primary blast injury of bronchus, unilateralS27.411A..., initial encounterS27.411D..., subsequent encounterS27.411S..., sequelaS27.412Primary blast injury of bronchus, bilateralS27.412A..., initial encounterS27.412D..., subsequent encounterS27.412S..., sequelaS27.419Primary blast injury of bronchus, unspecifiedS27.419A..., initial encounterS27.419D..., subsequent encounterS27.419S..., sequela