ICD-10-CM > S00-T88 > S20-S29 > S27 > S27.4 > S27.40 > S27.401 S27.401 Unspecified injury of bronchus, unilateral Non-Billable/Non-Specific Codes S27.401A..., initial encounterS27.401D..., subsequent encounterS27.401S..., sequela