On the classification and diagnosis of pathological grief.

It has been suggested that pathological grief should become either a separate category of mental disorder or be integrated within existing, extended classifications in systems such as the Diagnostic and Statistical Manual of Mental Disorders. Despite strong arguments for inclusion, and advancements by scientists toward development of diagnostic classification, there has been a lack of critical evaluation. Several issues need further scrutiny and clarification. These concern the definition of pathological grief, the distinction of pathological from normal grief, its relationship with other disorders, and the lack of agreement among scientists about criteria for pathological grief. Further research needs to focus on delineation of syndromes that comprise "pathological grief," and on derivation of acceptable, valid, diagnostic criteria. Evaluation of the ramifications--both positive and potentially negative--associated with the revision of the diagnostic status of pathological grief needs also to be undertaken.