ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.1 > S21.12 S21.12 Laceration with foreign body of front wall of thorax without penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.121Laceration with foreign body of right front wall of thorax without penetration into thoracic cavityS21.121A..., initial encounterS21.121D..., subsequent encounterS21.121S..., sequelaS21.122Laceration with foreign body of left front wall of thorax without penetration into thoracic cavityS21.122A..., initial encounterS21.122D..., subsequent encounterS21.122S..., sequelaS21.129Laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavityS21.129A..., initial encounterS21.129D..., subsequent encounterS21.129S..., sequela