On May 18, 1983, Group Health's 1,200 nurses vote to replace the Washington State Nurses Association with District 1199 Northwest as their bargaining agent. District 1199 Northwest is a unit of the National Union of Hospital and Healthcare employees.
In August, the new union and Group Health peacefully negotiated a new contract with a 5 percent pay increase that year. However, 1199 leader Diane Sosne signaled that Group Health nurses would take a more assertive stance on financial and workplace issues in the future.