Which of the following is considered identifiable information under HIPAA?

The correct choice is the Social Security number, as it is explicitly considered identifiable information under HIPAA. HIPAA defines identifiable information as any information that can identify an individual, and a Social Security number is a unique identifier assigned specifically to an individual that can be directly linked to personal health data, financial accounts, and other sensitive information.

In contrast, while age over 70, family medical history, and general health status may pertain to an individual's health, they do not necessarily provide a unique identifier on their own. Age can be considered identifiable in certain contexts but is not definitive since multiple individuals can share the same age. Family medical history may reveal patterns of health but does not directly identify a specific individual unless combined with other identifiers. General health status offers insight into a person's health but lacks the specificity needed to link it to a single person without additional context. Therefore, the Social Security number stands out as the most concrete form of identifiable information under the scope of HIPAA regulations.