U00-U49: Provisional assignment of new diseases of uncertain etiology or emergency use

U31: Emergency use of U31

The group of conditions under the Emergency Use of U31 consists of various diseases and health conditions experienced across a diverse patient population. Each condition within the U31 code range is classified under emergency use, indicating that the condition is being monitored for potential public health emergencies or bio-surveillance efforts. The conditions included in the group could be transmitted through several pathways such as respiratory, sexual, or direct contact with infectious agents causing various symptoms depending on the specific disease. Symptoms could vary from mild to severe and can affect different systems in the body, including the respiratory, gastrointestinal, or neurological systems. The course of the diseases in this group also varies, with some conditions improving by themselves while others might progress to more serious diseases if not treated. Please note that this classification doesn't suggest any advice on treatment or management of these conditions.