Even in Italy, the National Health Institute said that 88% of the declared "dead by covid19" had in fact at least 1 or 2 other pre-morbidities.
If a 80 years old dies from heart attack and is tested positive by covid19, it will count as "dead by covid19".
The numbers we see in the news of "CFR" for the covid19 are, in my opinion, inaccurate. The number only shows the spread of the infection, not its actual fatality rate.
CFR is a death rate of the population with particular medical conditions by definition. It is a correct usage.
CFR doesn't translate to the additional death rate, but it does contribute to the death rate by unspecified amount. In particular high enough CFR directly translates to the additional death rate when it exceeds the original crude death rate.
In anything Italy is undercounting covid-19 deaths:
The mayor of Bergamo, a city in northern Italy devastated by coronavirus, said on Monday that the actual death toll from the pandemic is likely several times higher than official count.
Giorgio Gori told NBC News on Monday that the total deaths in Bergamo are three to four times higher than during an average year, signaling that the virus is killing many more people than medical authorities have reported.
"We [have] evidence now in our territories that many people are unfortunately dying in their homes or in the residence for [seniors]," Gori said via Skype. "They are not officially tested because the test is only for people that go to the hospital with serious symptoms."
Doctors are also reporting that patients who seem to be improving are suddenly arresting due to the virus. So counting those victims as "dead by covid19" seems to be correct.
If a 80 years old dies from heart attack and is tested positive by covid19, it will count as "dead by covid19".
The numbers we see in the news of "CFR" for the covid19 are, in my opinion, inaccurate. The number only shows the spread of the infection, not its actual fatality rate.