Convert ICD-10 Code G90.2 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G90.2 Horner's syndrome		337.9 Autonomic nerve dis NEC
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 G90.2 - horner's syndrome based on the most recent General Equivalence Mappings (GEMS) information.