2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Ill-Defined Descriptions And Complications Of Heart Disease 429.* > 2008 ICD-9-CM Diagnosis 429.6 Rupture of papillary muscle  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 Therefore, this code may be out of date.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 429.6 can be accessed here. 429.6 is a specific code that can be used to specify a diagnosis 429.6 contains 1 index entry View the ICD-9-CM Volume 1 429.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 429.6: Rupture, ruptured 553.9 papillary muscle (ventricular) 429.6