Convert ICD-10 Code G12.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G12.0 Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]		335.0 Werdnig-hoffmann disease

ICD-10 to ICD-9 crosswalk for code G12.0 - infantile spinal muscular atrophy, type i [werdnig-hoffman] based on the most recent General Equivalence Mappings (GEMS) information.