UnitedHealth is set to end high-reimbursement in-network contracts with TeamHealth. The change would take effect between Oct. 15, 2019, and July 1, 2020, and affect contracts across 18 states. Earlier in 2019, UnitedHealth reduced TeamHealth's reimbursements for certain out-of-network claims by about 50 percent, prompting TeamHealth to sue UnitedHealth in eight states, according to Moody's. To understand the implications of UnitedHealth's feud with TeamHealth, Moody's analysts examined a similar dispute between Nashville, Tenn.-based Envision Healthcare and UnitedHealth. In the end, Envision agreed to lower reimbursements, resulting in an earnings decline for Envision. Moody's estimates TeamHealth's revenue would decline if it too agrees to a lower rate.