Paediatric Intensive Care Units (PICU) are complex interdisciplinary environments where challenging, high stakes decisions are frequently encountered. We assert that appropriate decisions are more likely to be made if the decision-making process is comprehensive, reasoned, and grounded in thoughtful deliberation. Strategies to overcome barriers to high quality decision-making including, cognitive and implicit bias, group think, inadequate information gathering, and poor quality deliberation should be incorporated. Several general frameworks for decision-making exist, but specific guidance is scarce. In this paper, we provide (...) specific guidance on collaborative complex decision-making for PICUs. The proposed approach is on principles of procedural justice and pragmatic hermeneutics. The process encompasses set-up/planning, information gathering, question formulation, analysis (perspectives, values, and principles), action plan development, decision documentation, and a review and appeal mechanism. The process can be adapted to suit other clinical contexts. Research evaluating the process, exploring how best to develop education for clinicians, and how to build a culture that values high quality deliberation, is worthwhile. (shrink)