Tags: Disease.
Familial hypocalciuric hypercalcemia is a condition that can cause hypercalcemia a serum calcium level typically above 10.2 mg/dL. It is also known as familial benign hypocalciuric hypercalcemia (FBHH) where there is usually a family history of hypercalcemia which is mild a urine calcium to creatinine ratio <0.01 and urine calcium <200 mg/day.