The Office for National Statistics will start publishing data about the rest of the deaths from 9.30am on Tuesday giving a fuller picture of the impact of Covid-19. They will tally all of the deaths from late December until 20 March which they believe occurred outside hospitals.
Unlike the NHS figures, which are limited to people who tested positive for the disease, they will also include cases where it is mentioned as a suspected cause on death certificates.
Edit: seem this may be a different set of data? not very clear
Not sure if we had this but the reason for today's large increase in recorded deaths
https://www.theguardian.com/world/2020/mar/30/covid-19-deaths-outside-hospitals-to-be-included-in-uk-tally-for-first-time
Edit: seem this may be a different set of data? not very clear