In order to study the impact of interventions on multidisciplinary teamwork in care processes, relevant indicators need to be defined. In the present study, the authors performed a Delphi survey of a purposively selected expert panel consisting of scientific researchers and hospital managers. Thirty-six experts from 13 countries participated. Each participant rated a list of team indicators on a scale of 1-6. Consensus was sought in two consecutive rounds. The content validity index (CVI) varied from 8% to 92%. A final list of 19 indicators was generated: 5 on team context/structure, 8 on team process, and 6 on team outcomes. Most relevant team indicators were as follows: "team relations," "quality of team leadership," "culture/climate for teamwork," "team perceived coordination of the care process," and "team vision." Scientific researchers and hospital managers that want to study and improve multidisciplinary teamwork in care processes should primarily focus on these team indicators.