Convert ICD-10 Code G12.23 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G12.23 Primary lateral sclerosis		335.24 Prim lateral sclerosis

ICD-10 to ICD-9 crosswalk for code G12.23 - primary lateral sclerosis based on the most recent General Equivalence Mappings (GEMS) information.