What classification describes a problem with a high risk of morbidity and mortality without treatment?

The classification that describes a problem with a high risk of morbidity and mortality without treatment is "High severity." This classification indicates that the condition poses significant health risks; therefore, it requires immediate and often intensive medical intervention to prevent serious adverse outcomes. High severity conditions are characterized by a critical nature that can lead to serious complications or even death if not addressed timely and appropriately.

In clinical settings, identifying high severity issues can facilitate urgent care and prioritization in treatment plans, ensuring that patients receive the most appropriate level of care according to the potential risks associated with their medical conditions.