ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.3 > S21.34 > S21.349 S21.349 Puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.349A..., initial encounterS21.349D..., subsequent encounterS21.349S..., sequela