Convert ICD-10 Code M31.4 to ICD-9

Source ICD-10 Code Target ICD-9 Code
M31.4
Aortic arch syndrome [Takayasu]
446.7
Takayasu's disease

ICD-10 to ICD-9 crosswalk for code M31.4 - aortic arch syndrome [takayasu] based on the most recent General Equivalence Mappings (GEMS) information.