Trifascicular block
ICD-10 I45.3 is a billable code used to indicate a diagnosis of trifascicular block.
Trifascicular block is a type of heart block characterized by the simultaneous involvement of all three fascicles of the left and right bundle branches, leading to a significant delay in the conduction of electrical impulses through the heart. Clinically, patients may present with symptoms such as syncope, dizziness, or palpitations, although some may be asymptomatic. The anatomy involved includes the conduction system of the heart, particularly the bundle of His and its bifurcation into the right and left bundle branches. Disease progression can lead to complete heart block or other arrhythmias, increasing the risk of sudden cardiac death. Diagnostic considerations include electrocardiogram (ECG) findings that reveal a prolonged QRS duration, typically greater than 120 milliseconds, and specific patterns indicating trifascicular involvement. It is crucial for healthcare providers to differentiate trifascicular block from other types of heart blocks, such as bifascicular block or complete heart block, to ensure appropriate management and treatment.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
I45.3 specifically covers trifascicular block, which includes the simultaneous involvement of the right bundle branch and both left bundle branch fascicles. It is important to note that this code does not cover isolated fascicular blocks or complete heart block.
I45.3 should be used when there is clear evidence of trifascicular block on an ECG, characterized by a prolonged QRS complex and specific patterns indicating involvement of all three fascicles. If only two fascicles are involved, I45.2 should be used instead.
Documentation for I45.3 should include an ECG report demonstrating the trifascicular block, clinical notes detailing the patient's symptoms, and any relevant history of cardiac conditions. It is essential to document the rationale for the diagnosis and any treatment plans.
