However, WD diagnosis still remains a challenge [14] because (a) care team does not think about this pathology, particularly in psychiatric unit; (b) diagnosis algorithms for WD are based on Leipzig score [15] using a broad combination of biochemical tests (serum ceruloplasmin, 24-h urinary copper excretion, serum-free copper, and hepatic copper), but most of them are difficult to apply to psychiatric patients. The gene discussed is CP; the disease is Wilson disease.