Convert ICD-10 Code E20.9 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
E20.9 Hypoparathyroidism, unspecified		252.1 Hypoparathyroidism
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 E20.9 - hypoparathyroidism, unspecified based on the most recent General Equivalence Mappings (GEMS) information.