Department of Health and Social Security Tags: Government Agency.The Department of Health and Social Security (commonly known as the DHSS) was a ministry of the British government in existence for twenty years from 1968 until 1988 and was headed by the Secretary of State for Social Services. extinction year 1988-01-01T00:00:00+02:00 formation year 1968-01-01T00:00:00+02:00 headquarter London jurisdiction United Kingdom location London successor Department of Health (United Kingdom), Department of Social Security Learn more... Loading...