As societal awareness of home health care increases, patient demands for home health care are becoming more diversified. In the future, the construction of a system able to address this diversification will be essential for further establishing the role of home health care in society. A demand exists for hospital primary care physicians, medical practitioners, visiting nurse stations, helper services, and firms to provide their services in flexible combination with those of organizations and occupations having various functions, in forms that suit the needs of the relevant patient group. Particularly in the case of visiting nursing, the cultivation of internal flexibility and cooperative relationships with outside organizations able to serve a variety of needs may prove to be the essential lesson remaining after the discontinuation of care insurance, two years after its introduction. Through cases involving physicians, visiting nurse stations, and firms we consider favorable ways for organizations to cooperate.