2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Other Forms Of Heart Disease 420-429 > Conduction Disorders 426.* > 2006 ICD-9-CM Diagnosis 426.4 Right bundle branch block View the most recent version of ICD-9-CM 426.4 426.4 is a specific code that can be used to specify a diagnosis 426.4 contains 7 index entries View the ICD-9-CM Volume 1 426.* hierarchy  Index entries containing 426.4: Block bundle branch (complete) (false) (incomplete) 426.50 right 426.4 with left bundle branch block (incomplete) (main stem) 426.53 left fascicular block 426.53 anterior 426.52 posterior 426.51 Wilson's type 426.4 heart 426.9 bundle branch (complete) (false) (incomplete) 426.50 right (see also Block, bundle branch, right) 426.4 intraventricular (diffuse) (myofibrillar) 426.6 bundle branch (complete) (false) (incomplete) 426.50 right (see also Block, bundle branch, right) 426.4 Bundle branch block (complete) (false) (incomplete) 426.50 right (see also Block, bundle branch, right) 426.4 Degeneration, degenerative bundle of His 426.50 right 426.4 Sclerosis, sclerotic bundle of His 426.50 right 426.4