ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.3 > S21.32 > S21.321 S21.321 Laceration with foreign body of right front wall of thorax with penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.321A..., initial encounterS21.321D..., subsequent encounterS21.321S..., sequela