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

U24: Emergency use of U24

U24 is a unique ICD-10 code that is used for recording provisions for extraordinary situations related to disease management, most often used in emergency situations. Typically, such an emergency might stem from a disease outbreak or pandemic, where the existing ICD-10 codes may not adequately define the new disease entity. The use of the U24 code allows healthcare professionals to capture and monitor the disease's emergence, its characteristics, symptoms, and transmission patterns, without delving into specific diseases or conditions that fall under this category. In these scenarios, the health issue might affect multiple body systems, vary considerably in its clinical manifestation and progression. It is critical to note that this code is a placeholder for emergent public health situations and is updated or redefined as more understanding of the etiology and manifestation of the disease is known.