ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.3 > S21.32 > S21.329 S21.329 Laceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.329A..., initial encounterS21.329D..., subsequent encounterS21.329S..., sequela