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Official Description

Recording of fetal magnetic cardiac signal using at least 3 channels; review, interpretation, report by physician or other qualified health care professional

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Fetal magnetocardiography (FMCG) is a sophisticated, non-invasive diagnostic technique utilized to capture and record the subtle magnetic fields generated by the electrical activity of a fetus's heart. This procedure is particularly relevant during the second and third trimesters of pregnancy, as well as during labor, to assess the well-being of the fetus. FMCG provides critical information regarding fetal movement, heart rate, and the presence or absence of cardiac arrhythmias, as well as potential congenital cardiac diseases. The process involves the placement of a pair of electrodes on the maternal abdomen, with a third electrode positioned on the maternal chest. This setup allows for the simultaneous recording of both fetal and maternal cardiac data, which are then separated and analyzed to provide insights into the fetal condition. The CPT® Code 0478T specifically refers to the recording of the fetal magnetic cardiac signal using at least three channels, along with the subsequent review, interpretation, and reporting of the findings by a physician or other qualified healthcare professional. This code is essential for documenting the comprehensive evaluation of the fetal cardiac signal, ensuring that healthcare providers can effectively monitor and respond to any potential issues during pregnancy.

© Copyright 2026 Coding Ahead. All rights reserved.

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