CommercialCoverageHigh impact
Extracorporeal Membrane Oxygenation (ECMO) (CPB 0546, reviewed 2026-08-27)
Aetna·Cardiothoracic Surgery, Critical Care, Pediatrics +3 more·Medical Policy
We identified it
Oct 2, 2026
Summary
Aetna's ECMO (CPB 0546) policy, reviewed August 27, 2026, defines medical necessity criteria for extracorporeal membrane oxygenation across neonates, children, and adults. The policy establishes specific qualifying diagnoses and patient parameters for coverage (e.g., neonates must be ≥34 weeks gestation, ≥2,000g birth weight, <10 days old), lists 24 covered CPT codes for ECMO initiation/management/cannula procedures, and explicitly designates multiple indications as experimental/investigational including COVID-19, acute aortic dissection, pulmonary embolism, and sepsis (non-pediatric). Billing teams must verify patient criteria and diagnoses before submitting claims using the covered CPT codes.
Action Required
Immediately: Billing team must update ECMO claim submission protocols to enforce Aetna's medical necessity criteria before billing. REQUIREMENTS: (1) For neonatal ECMO claims (CPT 33946-33989): verify diagnosis matches policy list (congenital diaphragmatic hernia, hyaline membrane disease, meconium aspiration, persistent fetal circulation, cardiac anomaly, refractory septic shock, RDS, uncontrollable air leak), confirm gestational age ≥34 weeks, birth weight ≥2,000g, and age <10 days; (2) For pediatric/adult ECMO claims: verify diagnosis is on covered list AND risk of death is very high despite optimal conventional therapy—deny or request prior authorization for diagnoses explicitly listed as experimental (COVID-19, acute coronary syndromes, acute aortic dissection, pulmonary embolism, drug overdose, burns without ARDS/cardiogenic shock/smoke inhalation, status asthmaticus, sepsis other than refractory pediatric septic shock); (3) Providers and billing coders must review diagnosis codes in encounter documentation before submission to ensure alignment with policy criteria; (4) Update claim rejection rules in billing software to flag missing or non-qualifying diagnoses, gestational age, birth weight, or age criteria for neonates. Failure to validate criteria will result in claim denials for medical necessity and potential recovery of paid claims.