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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Hypertensive Disease 401-405 > 2008 ICD-9-CM Diagnosis 402 Hypertensive heart disease  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 402 can be accessed here. 402 is a non-specific code that cannot be used to specify a diagnosis Use additional code to specify type of heart failure (428.0-428.43), if known 402 includes: hypertensive: cardiomegaly cardiopathy cardiovascular disease heart (disease) (failure) any condition classifiable to 429.0-429.3, 429.8, 429.9 due to hypertension