Emergency hospital services: costs – This bill would require a health care service plan contract or insurance policy issued, amended, or renewed on or after January 1, 2020, to provide that if an enrollee or insured receives covered emergency services from a noncontracting hospital, except as specified, the enrollee or insured is prohibited from paying more than the same cost sharing that the enrollee or insured would pay for the same covered services received from a contracting hospital. The bill would require a health care service plan or insurer to pay a noncontracting hospital for emergency services rendered to an enrollee or insured pursuant to a specified formula, would require a noncontracting hospital to bill, collect, and make refunds in a specified manner, and would provide a dispute resolution procedure if any party is dissatisfied with payment. The bill would require health care service plans and insurers to document cost savings pursuant to these provisions.