So, the actual document is linked in the comments on the tweet. I skimmed it and can't find that in there, and there are other comments complaining about the same thing. I concede that I read it quickly and may have missed something, but it appears to say the opposite of that. It's basically "death certificates for dummies".
Says that where COVID-19 is the underlying cause of death, it should be listed last in the chain of causes leading to death (IE "ARDS" due to "pneumonia" due to "COVID-19"), that unconfirmed cases should be clearly specified as "probable" or "presumed", and that pre-existing chronic conditions that did not cause COVID-19 but made someone more vulnerable to dying from it should be listed in Part II, "other significant conditions leading to death", rather than the other way around.
It explicitly says only to note COVID-19 if it played a role in the death. It also explicitly warns that it's a common mistake to use "illogical sequences" in the cause of death, in other words, to do goofy things like claiming something was "due to COVID-19", when it was not.
Fake news.
https://www.cdc.gov/nchs/data/nvss/vsrg/vsrg03-508.pdf