◆ Recovery audit contractors (RACs) may soon be auditing positron emission tomography (PET) for initial treatment strategy in oncologic conditions for compliance with medical necessity and documentation requirements. It was added to the list of proposed RAC topics[1] Jan. 5 for outpatient hospital and professional service reviews. CMS also added the first 2021 audit targets to the approved list: Air Ambulance: Medical Necessity and Documentation Requirements,[2] Hospice Continuous Home Care: Medical Necessity and Documentation Requirements,[3] and Ambulance Transport Subject to SNF Consolidated Billing.[4]