The International Electrotechnical Commission (IEC) has released IEC TR 60601-4-2:2016. This technical report covers “Medical electrical equipment – Part 4-2: Guidance and interpretation – Electromagnetic immunity: performance of medical electrical equipment and medical electrical systems.” It is available on the IEC webstore.
Description from the IEC website:
IEC TR 60601-4-2:2016(E) applies to the performance of medical electrical equipment or a medical electrical system in the presence of electromagnetic disturbances.