When a patient presents for emergency management services with various symptoms pertaining to the flu and no fever is found, you may be questioning exactly what should be noted in the medical necessity and other medical documentation sections of your medical billing form. You will not want to use this information under the history element. The 1997 “Documentation Guidelines for E/M Services” does not reference pertinent negatives in the context of the history of present illness (HPI). Instead, it references pertinent negatives in the context of the review of systems (ROS). Be certain not to check the associated signs and symptoms box of HPI. Instead, you should count the statement …