What does Unspecified Delirium refer to?

Unspecified Delirium refers to a situation where a person exhibits delirious symptoms, but there is insufficient information to make a more specific diagnosis. This classification is used when the criteria for delirium are met, but there is not enough detail provided to determine the exact etiology or type of delirium. This may occur in situations where the individual cannot be fully assessed due to a lack of information, such as during an emergency or if the individual is unable to communicate effectively.

In contrast, the other options present scenarios that do not align with the definition of Unspecified Delirium. For example, clear diagnostic criteria pertain to specific types of delirium, while only mild symptoms would not warrant a diagnosis of delirium as defined in the DSM-5. Additionally, temporary cognitive decline specifically after substance use would likely be classified under substance-induced delirium, rather than unspecified delirium, because it provides a clear cause linked to the substance. Thus, the choice indicating insufficient information for diagnosis accurately captures the essence of Unspecified Delirium in the context of the DSM-5.