[A case of compulsive buying--impulse control disorder or dependence disorder?].

OBJECTIVE

It is unclear what disease entity causes compulsive buying. In ICD-10 and DSM-IV, compulsive buying is classified as "Impulse control disorder--not otherwise classified". Some publications interpret compulsive buying rather as a dependence disorder.

METHOD: We present the case of a male patient with compulsive buying syndrome. We discuss the close relationship to dependence disorders.

CONCLUSIONS

The patient showed symptoms which would normally be associated with a dependence disorder. On the basis of a wider understanding of the dependency concept, as it is currently being discussed, we believe that the patient has shown a typical buying behavior that has presumably activated a reward loop similar to that of a substance dependency.