Convert ICD-10 Code S21.421D to ICD-9

Source ICD-10 Code		Target ICD-9 Code
S21.421D Lac w fb of r bk wl of thorax w penet thoracic cavity, subs		V58.89 Other specfied aftercare
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code S21.421D - laceration with foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter based on the most recent General Equivalence Mappings (GEMS) information.