Finnish institute for health and welfare is developing national health care quality registers for the ongoing project in 2018–2020, which covers seven disease pilot registers. This article describes professionals’ and patient associations’ cultural health care quality conceptions at developing process, reflecting to Weick’s sensemaking theory and patient-centered care. Research data ( N = 13) were collected by individual thematic semi-structured interviews from pilot registers’ professionals and patient associations. Data were analyzed using the discursive approach. Six main discourses on the shared sociocultural meanings of health care quality were constructed: confidence and reliability, information and understanding, safety and medical effectiveness, support, benchmarking and utility, and requirement and justice. Health care quality is built-in culture and action to achieve patient-centered care and is complex to define. Patient–clinician interaction, understanding, and support are constructive elements to make sense of quality registers’ necessity and data collection. The importance of Patient-Reported Outcome Measures (PROMs) and Patient-Reported Experience Measures (PREMs) measures is recognized to strengthen the patient-centeredness, which reflects to all health care decision-making, processes, and care. The data publication should be designed clearly and visually versatile. The study can offer new aspects for selecting valid quality indicators to produce comprehensive information for health care quality registers.