Left bundle branch block
International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01
Disorder of the atrioventricular conduction system in which the QRS duration is greater than or equal to 120 ms in adults, greater than 100 ms in children 4 to 16 years of age, and greater than 90 ms in children less than 4 years of age; there is a QS or rS pattern in lead V1 and a wide slurred R wave in leads I and V6.
sections/codes in this section (BC63.4-BC63.4)
- Left anterior fascicular block (BC63.40)
- Left posterior fascicular block (BC63.41)
- Left bundle branch block, fascicle unspecified (BC63.4Z)
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