S21.3 - Open wound of front wall of thorax with penetration into thoracic cavity
S21.31 - Laceration without foreign body of front wall of thorax with penetration into thoracic cavity
S21.311 - Laceration without foreign body of right front wall of thorax with penetration into thoracic cavity
S21.312 - Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity
S21.319 - Laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity