Convert ICD-10 Code E21.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
E21.1 Secondary hyperparathyroidism, not elsewhere classified		252.02 Sec hyprprthyrd nonrenal

ICD-10 to ICD-9 crosswalk for code E21.1 - secondary hyperparathyroidism, not elsewhere classified based on the most recent General Equivalence Mappings (GEMS) information.