The authors of this paper present a historical account of the development of Nursing Diagnossis, including definitions and the classification systems. The evolution from an alphabetized list of disgnostic labels to the Human Response Patterns of NANDA (North American Nursing Diagnosis Association) is discussed. The Challenge Arisses in the necol for international participation in the validation, modification and Consequent stabilization of the Taxonomy, as it heads for acceptance in the CID 10 (International Code of Diseases)