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Causes of death and health conditions · Other conditions

Sepsis deaths in the UK

The Office for National Statistics recorded 4,330 deaths in England and Wales in 2025 where the underlying cause was Septicaemia (ICD-10 A40 to A41). That was 42 fewer than in 2024 (4,372). The highest yearly figure since 2001 was 4,372 in 2024; the lowest was 1,755 in 2020.

England and Wales, 2025
4,330
deaths registered · ONS
Age-standardised rate, 2025
6.9
per 100,000 people · ONS
Scotland, 2024
346
deaths registered · NRS
Northern Ireland, 2024
76
deaths registered · NISRA

Deaths each year in England and Wales

4,3721,755 2001 2025
Deaths registered in England and Wales from Septicaemia, 2001 to 2025. Office for National Statistics.

Taking account of the population's size and age, the ONS age-standardised death rate was 6.9 per 100,000 people in 2025, 64.3% higher than in 2013 (4.2). For men it was 7.3 and for women 6.5.

In 2025, 1,946 of the deaths were of men and 2,384 of women.

Sepsis, A40 to A41: deaths registered in England and Wales; rate per 100,000 from 2013.
YearAllMenWomenAge-standardised rate
20254,3301,9462,3846.9
20244,3721,9782,3947.0
20234,2601,8752,3857.1
20223,7611,6192,1426.4
20212,8971,1981,6995.0
20201,7557541,0013.1
20192,4531,1031,3504.3
20182,7131,2261,4874.9
20172,5951,1351,4604.7
20162,8441,2291,6155.2
20152,7541,2021,5525.2
20142,3379941,3434.4
20132,1408791,2614.2
20122,0058301,175–
20112,1078691,238–
20102,1309071,223–
20092,2389721,266–
20082,1549431,211–
20072,3151,0041,311–
20062,3771,0561,321–
20052,3491,0121,337–
20042,1489271,221–
20032,0189211,097–
20021,9338621,071–
20011,798811987–

Age at death

Of the 4,330 deaths in 2025 with an age recorded, 81.4% were of people aged 75 or over; the largest number, 2,103, was in the 85 and over age group.

Deaths by age at death, England and Wales.
Age2025: all2025: men2025: women2001: all
Under 151881057
15 to 4438241481
45 to 64276141135191
65 to 74474240234303
75 to 841,421701720633
85 and over2,1038321,271533

Scotland

National Records of Scotland recorded 346 deaths from this cause in 2024 (153 men, 193 women).

Northern Ireland

NISRA's Registrar General figures give 76 deaths from this cause registered in Northern Ireland in 2024, against 67 in 2014.

Deaths registered in Northern Ireland. NISRA, Registrar General Annual Report, table 6.4b.
YearAllMenWomen
2024764531
2023632340
2022692049
2021542232
2020642539
20191085058
20181014754
20171184969
2016883454
2015933459
2014672740

How the figures are defined

Each death is counted once, under its underlying cause: the disease or injury that started the chain of events leading to death, as certified by a doctor or coroner and coded by the ONS to the International Classification of Diseases (ICD-10). This page uses the ONS grouping “Septicaemia”, codes A40 to A41. Other conditions mentioned on a death certificate are not counted here.

How deaths are registered and counted, how the age-standardised rate works and where the ONS series has breaks is set out under how these figures are compiled.

Related answers

More in other conditions

Sources and receipts

ONS mortality extracts for codes A40 to A41, with SHA-256 fingerprints; the ONS, NRS and NISRA workbooks are listed with the other sources.

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