U00-U49: Provisional assignment of new diseases of uncertain etiology or emergency use
U27: Emergency use of U27
The U27 code in the ICD-10 WHO 2016 classification refers to a group of conditions that are seeing emergency use. These are usually new, emerging, or rare diseases that lack a defined classification yet require immediate attention due to their potential risk to public health. They may be infectious or non-infectious in nature, but typically present with sudden onset of symptoms which could be severe or life-threatening. The conditions within this group may be caused by a variety of factors including bacteria, viruses, environmental exposures, genetic mutations, or unknown causes. Symptoms vary widely depending on the particular disease, but could include significant discomfort, system-dysfunction, or deterioration of health. The diseases under this group typically require emergent medical attention because of the potential for rapid disease progression and severe outcomes.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.