ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.1 > S21.13 > S21.139 S21.139 Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.139A..., initial encounterS21.139D..., subsequent encounterS21.139S..., sequela