The DSM-5 diagnostic criteria for depression are often too narrow and may fail to identify individuals who are high-functioning and not visibly distressed.

“if someone says yes to some but no to others and they don't fit neatly into a box let's say they say yes to everything but they're still high functioning don't feel distressed then you're like well you don't fit into this box so I guess you got to come back when you have low functioning”