Convert ICD-10 Code D03.21 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
D03.21 Melanoma in situ of right ear and external auricular canal		172.2 Malig melanoma ear
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 D03.21 - melanoma in situ of right ear and external auricular canal based on the most recent General Equivalence Mappings (GEMS) information.