LBBB ICD-10-CM Codes | 2023

What ICD-10 Codes are Used for Left Bundle Branch Block (LBBB)

Left Bundle Branch Block (LBBB) is a cardiac conduction abnormality that affects the heart's electrical system. Here are commonly used ICD-10-CM codes for LBBB, along with brief clinical descriptions:

• I45.2 - Left anterior fascicular block: Used for LBBB that affects the left anterior fascicle, a subdivision of the left bundle branch.
• I45.3 - Left posterior fascicular block: Applied when LBBB specifically involves the left posterior fascicle, another subdivision of the left bundle branch.
• I45.4 - Other and unspecified fascicular block: Utilized for LBBB cases that affect other or unspecified fascicles of the left bundle branch.
• I49.4 - Bundle-branch reentry ventricular tachycardia: This code may be used for LBBB when it leads to bundle-branch reentry ventricular tachycardia, a specific heart rhythm abnormality.

Which LBBB ICD Codes are Billable

The billable status of the mentioned ICD-10 codes for LBBB varies:

• I45.2 - Left anterior fascicular block: Yes, billable. Medical expenses for LBBB involving the left anterior fascicle can be claimed.
• I45.3 - Left posterior fascicular block: Yes, billable. Costs associated with LBBB affecting the left posterior fascicle can be reimbursed.
• I45.4 - Other and unspecified fascicular block: Yes, billable. Medical expenses for other or unspecified fascicular block-related LBBB can be claimed.
• I49.4 - Bundle-branch reentry ventricular tachycardia: Yes, billable. Costs associated with LBBB leading to bundle-branch reentry ventricular tachycardia can be reimbursed.

Clinical Information

• Left Bundle Branch Block (LBBB) is an abnormal pattern seen on an electrocardiogram (ECG) that indicates a delay or blockage in the electrical conduction of the heart's left bundle branch.
• It can be caused by various heart conditions, such as heart disease, high blood pressure, or cardiomyopathy, or it can be benign.
• Diagnosis is made through an ECG, which shows characteristic changes in the QRS complex, specifically a widened QRS complex and changes in the direction of electrical depolarization in the heart.
• LBBB can affect the heart's ability to pump blood effectively, potentially leading to symptoms like palpitations or shortness of breath.
• Treatment depends on the underlying cause. Identifying and managing any heart conditions is crucial.
• If LBBB is causing severe symptoms or heart failure, a pacemaker may be considered to restore normal heart rhythm.
• Patient education should include understanding the potential causes and the need for ongoing monitoring and management of LBBB.
• Healthcare practitioners play a key role in diagnosing the condition, determining its underlying cause, and providing appropriate treatm

Synonyms Include

• ICD-10 LBBB
• Left Bundle Branch Block
• Heart Conduction Abnormality
• I45.2
• I45.3
• Bundle-Branch Reentry Ventricular Tachycardia