[Diagnostic criteria for vitamin D-deficient rickets and hypocalcemia-].

Vitamin D deficiency causes rickets or osteomalacia, which is associated with hypomineralization of bone and chondrocytes, and/or hypocalcemia. Accumulating evidence indicates increase in frequency of vitamin D deficiency due to insufficient intake of vitamin D and calcium and decrease in sunshine. It is necessary for clinician to diagnose vitamin D deficiency accurately and treat patients with vitamin D deficiency adequately. For the purpose, clinical guideline or expert opinion on vitamin D deficiency has been reported.