Convert ICD-10 Code A18.4 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
A18.4 Tuberculosis of skin and subcutaneous tissue		017.00 TB skin/subcutan-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.
A18.4 Tuberculosis of skin and subcutaneous tissue		017.10 Erythema nodos tb-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 A18.4 - tuberculosis of skin and subcutaneous tissue based on the most recent General Equivalence Mappings (GEMS) information.