S21.402A

Unsp opn wnd l bk wl of thorax w penet thoracic cavity, init Unspecified open wound of left back wall of thorax with penetration into thoracic cavity, initial encounter

Unsp opn wnd l bk wl of thorax w penet thoracic cavity, init Unspecified open wound of left back wall of thorax with penetration into thoracic cavity, initial encounter: Injury, poisoning and certain other consequences of external causes (ICD-10-CM S00 to T88), a billable code.