Influenza clinical risk groups 2017 version - Chronic cardiac conditions

Read v2 codes for diagnoses of chronic cardiac conditions as an indication for influenza vaccination, including congenital heart disease, hypertension with cardiac complications, chronic heart failure, history of myocardial infarction, and other cardiac conditions likely to require regular medication and/or follow-up. Definition designed to follow national guidance in indications for influenza vaccination https://www.gov.uk/government/publications/influenza-the-green-book-chapter-19