The number of nursing diagnoses can vary depending on the classification system used. The most widely recognized classification system is the NANDA International (NANDA-I) nursing diagnoses, which periodically updates its list of diagnoses. As of the most recent updates, there are over 230 official nursing diagnoses listed by NANDA-I.
Additionally, nursing diagnoses can be adapted or expanded based on individual patient needs and specific contexts. Therefore, while NANDA-I provides a standardized set of diagnoses, nurses may use their clinical judgment to address unique patient situations. For the most current and specific number of nursing diagnoses, it is best to refer to the latest NANDA-I publication.