A teleological class of prognostically relevant informations represent the
individual medical prognosis. Based on this hypothesis the article analyzes
the logical structure of the individual medical prognosis and describes a
generalized model of prognostic reasoning in clinical medicine. The individ
ual clinical course, the individual patient model, and clinical expectation
s of characteristic structure are the basic elements of the model. The appl
ication of the model is operationalized by an algorithm.