This article is interesting.

https://www.bbc.co.uk/news/health-51979654

It is terrible that people are dying but when the count is done at the end is really the only time we will know the true result of this new virus.
The count-back will take into account the other causes. As has been said, anyone dying in Hosptal at the moment who had the virus at the time is being counted ut a lage proportion of those may have died anyway, its just all happening in a short space of time rather than over a period of several months.