Convert ICD-10 Code E05.91 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
E05.91 Thyrotoxicosis, unspecified with thyrotoxic crisis or storm		242.91 Thyrotox NOS w crisis

ICD-10 to ICD-9 crosswalk for code E05.91 - thyrotoxicosis, unspecified with thyrotoxic crisis or storm based on the most recent General Equivalence Mappings (GEMS) information.