Aetna · Identified Aug 12, 2026Medium impact
Electrical Bioimpedance for Cardiac Output Monitoring and Other Selected Indications (CPB 0472, reviewed 2026-07-17)
Aetna considers cardiac monitoring with thoracic electrical bioimpedance medically necessary when medical history, physical examination and standard assessment tools provide insufficient information and the treating physician determines the data are necessary, for differentiating cardiogenic from pulmonary causes of acute dyspnea, evaluating rejection in heart transplant recipients as a pre-determined alternative to myocardial biopsy, monitoring response to medication changes for drug-resistant hypertension, optimizing the atrio-ventricular interval in patients with AV sequential pacemakers, optimizing fluid management in congestive heart failure, and outpatient monitoring of continuous inotropic therapy for terminal CHF. Aetna considers electrical bioimpedance for body composition and nutritional status, cancer detection and palliative cancer care, lung capacity screening, sarcopenia, neuromuscular diseases, intracochlear monitoring, fluid balance in end-stage renal disease, and whole-body bioimpedance for cardiac output monitoring in neonates experimental, investigational or unproven. Cardiac monitoring with these devices is also considered experimental, investigational or unproven for congenital heart disease surgery, orthotopic liver transplantation, cardiopulmonary bypass, ischemic heart disease without overt cardiac failure, edema or arrhythmias, and severe aortic regurgitation.