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I45 Other conduction disorders

ICD-10-CM category I45 sits in Chapter 9 (Diseases of the circulatory system, I00-I99). It contains 11 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

I45.1 Other and unspecified right bundle-branch blockI45.8 Other specified conduction disorders

Billable codes in I45

CodeDescription
I45.0Right fascicular block
I45.10Unspecified right bundle-branch block
I45.19Other right bundle-branch block
I45.2Bifascicular block
I45.3Trifascicular block
I45.4Nonspecific intraventricular block
I45.5Other specified heart block
I45.6Pre-excitation syndrome
I45.81Long QT syndrome
I45.89Other specified conduction disorders
I45.9Conduction disorder, unspecified

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