Question: I’m currently coding a case where two physicians were involved during an ECMO/ECLS procedure. One physician managed the circuit and the anticoagulation, and the other physician managed the patient’s overall condition and underlying disorders — on a daily basis. What are the rules when multiple physicians are involved in ECMO/ECLS? New York Subscriber Answer: In the case where multiple physicians are involved in ECMO/ECLS, usually the physicians are of different specialties and significant physician team interaction is usually necessary. Rule: If the same physician provides any or all of the services for placing a patient on an ECMO/ECLS circuit, then he may report the appropriate codes for the service he performed, according to the CPT® guidelines. These codes are as follows: Caution: The same or different individuals may not report 33948 or 33949 for ECMO/ECLS daily management and 33957-33964 for repositioning services on the same day as codes 33946 or 33947. “If different physicians provide parts of the service, each physician may report the correct code(s) for the service(s) they provided, except as noted,” per the guidelines.