Wiktionary
disease mongering
n. (context pejorative English) The practice of widening the diagnostic boundaries of illnesses in order to expand the markets for treatments.
Wikipedia
Disease mongering
Disease mongering is a pejorative term for the practice of widening the diagnostic boundaries of illnesses and aggressively promoting their public awareness in order to expand the markets for treatment. Among the entities benefiting from selling and delivering treatments are pharmaceutical companies, physicians, and other professional or consumer organizations.