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Computerized 2-lead resting electrocardiogram analysis (e.g., multifunction cardiogram) is a computerized analysis of a 2-lead resting electrocardiogram that has been proposed for use as a diagnostic test for coronary artery disease (CAD). This policy will review the evidence on accuracy and clinical utility of the multifunction cardiogram.
The multifunction cardiogram is intended to improve on the performance of the standard ECG for diagnosing CAD. The study device records a 2-lead ECG tracing for 82 seconds, using leads II and V5 together with proprietary hardware and software. The analog ECG tracing is then amplified, digitized, down-sampled to a rate of 100Hz, and encrypted for digital transmission. The digitized information is transmitted to a central server for further analysis. At the central server, the tracings undergo a series of mathematical transformations and signal averaging. There are 6 mathematical transformations included: power spectrum, coherence, phase angle shift, impulse response, cross-correlation, and transfer function. Following these transformations, the patterns found in the tracing are compared to a large reference database collected by the manufacturer. A severity score is generated, indicating the likelihood that CAD is present. The severity score ranges from 0-20, with a score of 4.0 suggested as the threshold for the presence of clinically significant CAD.
There is a least one commercially available multifunction cardiogram. In April 2003, the Premier Heart MCGÔ system (Premier Heart, Port Washington, NY) was cleared for marketing by the U.S. Food and Drug Administration (FDA) through the 510(k) process. The FDA determined that this device was substantially equivalent to existing devices for use in ECG analysis.
Also, see the related medical policy, Signal-Averaged Electrocardiography.
POLICYComputerized 2-lead resting electrocardiogram analysis (e.g., multifunction cardiogram) is considered investigational for diagnosing coronary artery disease.
POLICY EXCEPTIONSFederal Employee Program (FEP) may dictate that all FDA-approved devices, drugs or biologics may not be considered investigational and thus these devices may be assessed only on the basis of their medical necessity.
The coverage guidelines outlined in the Medical Policy Manual should not be used in lieu of the Member's specific benefit plan language.
Investigative is defined as the use of any treatment procedure, facility, equipment, drug, device, or supply not yet recognized as a generally accepted standard of good medical practice for the treatment of the condition being treated and; therefore, is not considered medically necessary. For the definition of Investigative, “generally accepted standards of medical practice” means standards that are based on credible scientific evidence published in peer-reviewed medical literature generally recognized by the relevant medical community, and physician specialty society recommendations, and the views of medical practitioners practicing in relevant clinical areas and any other relevant factors. In order for equipment, devices, drugs or supplies [i.e, technologies], to be considered not investigative, the technology must have final approval from the appropriate governmental bodies, and scientific evidence must permit conclusions concerning the effect of the technology on health outcomes, and the technology must improve the net health outcome, and the technology must be as beneficial as any established alternative and the improvement must be attainable outside the testing/investigational setting.
POLICY HISTORY03/31/2011: Approved by Medical Policy Advisory Committee.
01/17/2012: Policy reviewed; no changes.
03/13/2013: Policy reviewed; no changes.
03/05/2014: Policy reviewed; no changes.
01/08/2015: Policy reviewed; no changes.
07/13/2015: Code Reference section updated for ICD-10.
06/06/2016: Policy number added. Investigative definition updated in Policy Guidelines section.
07/05/2016: Policy description updated regarding devices. Policy statement unchanged.
SOURCE(S)Blue Cross Blue Shield Association policy # 2.02.25
This may not be a comprehensive list of procedure codes applicable to this policy.