According to a new working paper from UnitedHealth Group, genetic tests are available for 2,500 conditions. There are between 1,000 and 1,300 genetic tests, but only 400 have evidence-based guidelines. Seven manufacturers lead the market and 1,000 US labs offer such tests. UnitedHealth estimates that in 2010 it spent $500 million on genetic and molecular diagnostic tests for its members, with almost 40% spent on infectious disease tests and 16% spent on cancer tests. Spending per member grew an estimated 14% on average from 2008 to 2010. UnitedHealth estimates that total US spending for genetic tests and services in 2010 was $5 billion or 8% of the US spending on clinical lab services.

Source: UnitedHealth Group