ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.3 > S21.34 > S21.342 S21.342 Puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.342A..., initial encounterS21.342D..., subsequent encounterS21.342S..., sequela