ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.4 > S21.41 > S21.411 S21.411 Laceration without foreign body of right back wall of thorax with penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.411A..., initial encounterS21.411D..., subsequent encounterS21.411S..., sequela