Atrioventricular block, first degree
ICD-10 I44.0 is a billable code used to indicate a diagnosis of atrioventricular block, first degree.
Atrioventricular block, first degree (AV block) is characterized by a delay in the conduction of electrical impulses through the atrioventricular node, resulting in a prolonged PR interval on an electrocardiogram (ECG). Clinically, patients may be asymptomatic, but some may experience palpitations, fatigue, or dizziness. The anatomy involved includes the heart's conduction system, particularly the atrioventricular node, which connects the atria and ventricles. Disease progression is generally benign in first-degree AV block, often remaining stable without significant progression to higher degrees of block. However, it can be associated with underlying heart conditions such as ischemic heart disease, myocarditis, or cardiomyopathy. Diagnostic considerations include a thorough patient history, physical examination, and ECG interpretation. The diagnosis is confirmed when the PR interval exceeds 200 milliseconds, with no dropped beats. Regular monitoring may be warranted, especially in patients with risk factors for more severe conduction disturbances.
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
I44.0 specifically covers first-degree atrioventricular block, which is characterized by a prolonged PR interval on an ECG. It does not include higher degrees of AV block or other conduction disorders.
I44.0 should be used when the patient exhibits a first-degree AV block with a PR interval greater than 200 milliseconds without any dropped beats. It is important to differentiate it from second-degree and complete heart blocks.
Documentation must include an ECG report showing a PR interval exceeding 200 milliseconds, along with a clinical assessment of the patient's symptoms and any relevant medical history.
