Covid-19 was mentioned on the death certificates of 40 people in Northern Ireland in the week up to 11 February.
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That was an increase of 10 on the previous week, according to the Northern Ireland Statistics and Research Agency (Nisra).
It brings the agency's total, based on mentions of the virus on death certificates, to 4,236.
The Department of Health's total, up to last Friday, based on a positive test being recorded, was 3,153.
Nisra's figures are higher because it records mentions of the virus on death certificates, where it may or may not have been confirmed by way of a test.
Of the agency's measure, more than two-thirds of Covid-19-related deaths have occurred in hospital (69.8%).
There have been 1,194 care home resident deaths, accounting for slightly less than a third (28.1%) of all Covid-19-related deaths.
People aged 75 and over accounted for 73.3% of the 4,236 Covid-19-related deaths registered between 19 March 2020 and 11 February 2022.
The provisional number of deaths from all causes registered in the week ending 11 February was 375, an increase of 12 from the previous week.
