A nurse's diagnostic clinical judgment about actual and potential problems, as well as about patients' life processes, should be expressed by nursing diagnoses (NDs) with high accuracy, as these will enable the achievement of better patient results (Apostólico, Egry, Fornari, & Gessner, 2017;da Silva et al, 2020). However, interpretations with low accuracy may lead to omission of care and unnecessarily prolong treatment rather than be beneficial to patients (Lunney, Marques, de Barros, Michel, & Anderson, 2004;Matos & Cruz, 2013).The concept of diagnostic accuracy in nursing was based on the assumption that several NDs are present in the same clinical condition (da Silva et al, 2020;Lunney, 1990). In this context, diagnostic accuracy is analyzed under a null-to-high continuum, in which diagnoses with higher levels of accuracy reflect a patient's health condition more appropriately (da Silva et al, 2020;Lunney, 1990).