ICD-10-CM > S00-T88 > S20-S29 > S21 > S21.3 > S21.31 > S21.311 S21.311 Laceration without foreign body of right front wall of thorax with penetration into thoracic cavity Non-Billable/Non-Specific Codes S21.311A..., initial encounterS21.311D..., subsequent encounterS21.311S..., sequela