I won't lie about it but I won't disclose it unless absolutely necessary as it is not pertinent to my work most of the time, so I will take this tact again when I begin job hunting upon graduation. If time off is needed for therapy appointments, pdoc, etc. and then the time is simply needed for a "medical condition". If there is a required physical exam and mental health is usually asked about then, it needs to be disclosed as "treated (depression/BP/whatever the case may be" ; I will do so, but these files are typically confidential with HR or management.

Best wishes in your job hunt!!