Convert ICD-10 Code S56.399D to ICD-9

Source ICD-10 Code		Target ICD-9 Code
S56.399D Inj extn/abdr musc/fasc/tend of thmb at forearm level, 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 S56.399D - other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level, subsequent encounter based on the most recent General Equivalence Mappings (GEMS) information.