Convert ICD-10 Code I28.1 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
I28.1 Aneurysm of pulmonary artery		417.1 Pulmon artery aneurysm

ICD-10 to ICD-9 crosswalk for code I28.1 - aneurysm of pulmonary artery based on the most recent General Equivalence Mappings (GEMS) information.