For more detail on how pre-existing conditions and main pre-existing conditions are derived, refer to https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/methodologies/measuringpreexistinghealthconditionsindeathcertificationdeathsinvolvingcovid19march2020 3 Includes the following respiratory conditions (ICD-10 codes in brackets): - Acute respiratory infections other than influenza and pneumonia (J00-J06, J20-J22) - Influenza and pneumonia (J09-J18) - Chronic lower respiratory diseases (J40-J47) - Pulmonary oedema and other interstitial pulmonary diseases (J80-J84) - Respiratory failure (R96) 4 Based on date...