The article presents the developing of a tool aimed to analyze the decision-making (DM) processes in critical care contexts. It was developed in a study conducted through a phenomenological approach. By analyzing the discursive practice through which physicians in an intensive care unit (ICU) arrive at decisions, we construct a discursive profile of each ICU involved, to improve the ICU team members’ knowledge of the complexity of their DM processes. To do so, we develop a system of analysis capable of capturing discursive actions faithfully. Our method facilitates a system of analysis that highlights the role of the various discursive acts in conversational flow, starting from the needs in an ICU setting, which are spontaneously recognized from the data, to the almost simultaneous processes of description and understanding. This has led to the creation of a tool follows the phenomenological-grounded route.