2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Pulmonary Circulation 415-417 > Other Diseases Of Pulmonary Circulation 417.* > 2006 ICD-9-CM Diagnosis 417.9 Unspecified disease of pulmonary circulation View the most recent version of ICD-9-CM 417.9 417.9 is a specific code that can be used to specify a diagnosis 417.9 contains 2 index entries View the ICD-9-CM Volume 1 417.* hierarchy  Index entries containing 417.9: Disease, diseased - see also Syndrome pulmonary - see also Disease, lung artery 417.9 circulation, circulatory 417.9 specified NEC 417.8