A diagnosis support apparatus for diagnosis of a patient body includes a diagnosis support device, which determines diagnosis support information for use in reference for the diagnosis by running a diagnosis support program according to plural input list items related to medical care data of the patient body. An evaluator compares a contribution value of contribution of the input list items to determining the diagnosis support information with a predetermined threshold, to generate contribution information related to at least one large contribution list item of which the contribution value is equal to or more than the threshold. A display panel displays the diagnosis support information and the contribution information, so that system visibility can be high. Preferably, the input list items include at least one of list items related to medication, a vital sign, a diagnostic test and imaging.
