Convert ICD-10 Code H18.229 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H18.229 Idiopathic corneal edema, unspecified eye		371.21 Idiopathic corneal edema
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 H18.229 - idiopathic corneal edema, unspecified eye based on the most recent General Equivalence Mappings (GEMS) information.