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Code deleted. For in-office connection or review and interpretation of an external patient-activated electrocardiographic rhythm–derived event recorder without 24-hour attended monitoring, use 93799.

Official Description

External patient-activated, physician- or other qualified health care professional-prescribed, electrocardiographic rhythm derived event recorder without 24-hour attended monitoring; in-office connection

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

An external patient-activated electrocardiographic rhythm derived event recorder, commonly referred to as an ambulatory external electrocardiogram (AECG), is a diagnostic tool prescribed by a physician or other qualified health care professional. This device is specifically designed to document suspected cardiac arrhythmias, which are irregular heartbeats that may occur with or without episodes of syncope (fainting). Additionally, it is utilized to assess suspected cardiac muscle ischemia, which is characterized by ST segment depression on an electrocardiogram, and to evaluate the effectiveness of anti-arrhythmia drug therapy. The recorder is also beneficial in monitoring the recurrence of arrhythmias after the discontinuation of such therapies and in determining the success or failure of ablation therapy, a procedure used to correct arrhythmias. The device is compact and leadless, allowing the patient to carry it conveniently. When the patient experiences symptoms indicative of a cardiac event, they can easily apply the device to their chest wall and activate the ECG recording. Once the event concludes, the patient transmits the recorded data through a telephone line or wireless modem to a central monitoring site, where the data is analyzed and validated. A report detailing the findings is then sent to the health care provider for further evaluation and management. The CPT® Code 0497T specifically denotes the in-office connection of this external patient-activated electrocardiographic rhythm derived event recorder, ensuring accurate documentation and billing for the service provided.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The external patient-activated electrocardiographic rhythm derived event recorder is indicated for use in various clinical scenarios, including:

  • Suspected Cardiac Arrhythmias - This device is utilized to document irregular heart rhythms that may be symptomatic or asymptomatic.
  • Syncope - It is particularly useful in cases where patients experience fainting spells, allowing for the capture of arrhythmias that may correlate with these events.
  • Cardiac Muscle Ischemia - The recorder helps in identifying ischemic episodes characterized by ST segment depression on the ECG, which may indicate insufficient blood flow to the heart muscle.
  • Evaluation of Anti-Arrhythmia Drug Therapy - The device assists in assessing the effectiveness of medications prescribed to manage arrhythmias.
  • Recurrence of Arrhythmias - It is used to monitor patients for the return of arrhythmias following the cessation of drug therapy.
  • Success or Failure of Ablation Therapy - The recorder aids in determining the outcomes of ablation procedures aimed at correcting arrhythmias.

2. Procedure

The procedure for utilizing the external patient-activated electrocardiographic rhythm derived event recorder involves several key steps:

  • Device Prescription - A physician or qualified health care professional prescribes the external event recorder based on the patient's clinical presentation and suspected cardiac conditions.
  • Patient Education - The patient receives instructions on how to use the device, including when and how to activate it during symptomatic episodes.
  • Device Application - At the onset of symptoms, the patient applies the leadless device to their chest wall, ensuring proper contact for accurate ECG recording.
  • Activation of Recording - The patient activates the ECG recording feature of the device, which begins capturing the heart's electrical activity during the event.
  • Data Transmission - After the event concludes, the patient transmits the recorded data to a central monitoring site using a telephone line or wireless modem, ensuring that the information is securely sent for analysis.
  • Data Analysis and Reporting - The transmitted data is analyzed and validated by healthcare professionals at the monitoring site, and a comprehensive report is generated and sent to the prescribing health care provider for review.

3. Post-Procedure

Post-procedure care for patients using the external patient-activated electrocardiographic rhythm derived event recorder typically involves follow-up communication with the health care provider. The provider reviews the report generated from the transmitted data to assess the patient's cardiac status. Depending on the findings, further diagnostic testing, adjustments to medication, or additional therapeutic interventions may be recommended. Patients are also advised to maintain communication with their healthcare team regarding any ongoing symptoms or concerns following the use of the device.

Short Descr XTRNL PT ACT ECG IN-OFF CONN
Medium Descr XTRNL PT ACT ECG W/O ATTN MNTR IN-OFFICE CONN
Long Descr External patient-activated, physician- or other qualified health care professional-prescribed, electrocardiographic rhythm derived event recorder without 24-hour attended monitoring; in-office connection
Status Code Carriers Price the Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 3 - Technical Component Only Code
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator STV-Packaged Codes
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
Date
Action
Notes
2022-12-31 Deleted Code deleted. For in-office connection or review and interpretation of an external patient-activated electrocardiographic rhythm–derived event recorder without 24-hour attended monitoring, use 93799.
2019-01-01 Changed Code description changed.
2018-01-01 Added Code Added.
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Description
Code
Description
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