2025 ICD-10-CM code I44.1

Second degree atrioventricular block. This encompasses Mobitz type I and II, and Wenckebach's block.

It is essential to distinguish between Mobitz Type I and II, as this impacts treatment and prognosis. Documentation should clearly specify the type.Additionally, any underlying causes of the AV block should be coded separately.

Medical necessity for treatment of second-degree AV block depends on the symptoms, type of block, and underlying cause.Symptomatic patients or those with high-risk features (such as Mobitz II) may require pacemaker implantation.Documentation must support the rationale for intervention.

Diagnosis and management of second-degree atrioventricular block falls under the purview of cardiologists, electrophysiologists, and potentially internists or family physicians depending on the clinical setting and severity.

In simple words: A second-degree heart block means that some of the electrical signals that control your heartbeat don't reach the lower chambers of your heart. This results in dropped or skipped heartbeats.

Atrioventricular block, second degree.This is a disorder of the heart's electrical conduction system, where some of the electrical impulses from the atria do not reach the ventricles, resulting in a skipped heartbeat. It includes Mobitz Type I (Wenckebach) and Mobitz Type II.

Example 1: A patient presents with dizziness and occasional skipped heartbeats. An ECG reveals a prolonged PR interval that progressively lengthens until a QRS complex is dropped, consistent with Mobitz Type I., A patient with a history of myocardial infarction experiences syncope.An ECG shows consistent PR intervals with intermittently dropped QRS complexes, indicative of Mobitz Type II., During routine ECG screening, a patient is found to have periods of grouped beating with a repeating pattern of dropped QRS complexes, characteristic of second-degree AV block.

Thorough documentation should include ECG findings (specifically the type of second-degree AV block), symptoms, associated conditions, and treatment plan.If a device is implanted, documentation of the device type and settings is essential.

  • Payment Status: Active
  • Specialties:Cardiology, Electrophysiology, Internal Medicine, Family Medicine
  • Place of Service:Inpatient Hospital, On Campus-Outpatient Hospital, Off Campus-Outpatient Hospital, Office, Ambulatory Surgical Center, Emergency Room - Hospital,Telehealth Provided in Patient’s Home, Telehealth Provided Other than in Patient’s Home
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