Convert ICD-10 Code T21.40XA to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T21.40XA Corrosion of unsp degree of trunk, unsp site, init encntr		942.00 Burn NOS trunk-unspec
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 T21.40XA - corrosion of unspecified degree of trunk, unspecified site, initial encounter based on the most recent General Equivalence Mappings (GEMS) information.