For example, overdoses and suicides are often quite difficult to distinguish.
Suicidal ideation does appear to have increased: https://www.cdc.gov/mmwr/volumes/69/wr/mm6932a1.htm?s_cid=mm... But it doesn't correlate well to actual suicide rates. It's also quite possible that the emphasis on suicides has in fact raised awareness enough to prevent them. Or perhaps the way people are dealing with the stresses that lead to suicide has changed, resulting in that being expressed in some other way. Or a mix of all these factors.
[1] https://www.marketwatch.com/story/deaths-of-despair-during-c...