US · guidance
NCD 20.11
Intraoperative Ventricular Mapping
Item/Service Description
Intraoperative ventricular mapping is the technique of recording cardiac electrical activity directly from the heart. The recording sites are usually identified from an anatomical grid and may consist of epicardial, intramural, and endocardial sites. A probe with electrodes is used to explore these surfaces and generate a map that displays the sequence of electrical activation. This information is used by the surgeon to locate precisely the site of an operative intervention.
Indications and Limitations of Coverage
The intraoperative ventricular mapping procedure is covered under Medicare only for the uses and medical conditions described below:
• Localize accessory pathways associated with the Wolff-Parkinson-White (WPW) and other preexcitation syndromes;
• Map the sequence of atrial and ventricular activation for drug-resistant supraventricular tachycardias;
• Delineate the anatomical course of His bundle and/or bundle branches during corrective cardiac surgery for congenital heart diseases; and
• Direct the surgical treatment of patients with refractory ventricular tachyarrhythmias.
History
Version 1
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-26
- Edition
- mcd-2026-08-26
- Content hash
5e1ee641ed805a196758226c010ebcf276fe173276a4b83201da5385814e5e6d
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