I45 Other conduction disordersNon-billable header with 9 child codes.
I45.0 Right fascicular blockI45.1 Other and unspecified right bundle-branch blockI45.2 Bifascicular blockI45.3 Trifascicular blockI45.4 Nonspecific intraventricular blockI45.5 Other specified heart blockI45.6 Pre-excitation syndromeI45.8 Other specified conduction disordersI45.9 Conduction disorder, unspecified