familial hypocalciuric hypercalcemia 2 (MONDO_0007792) is a familial hypocalciuric hypercalcemia that has material basis in heterozygous mutation in the GNA11 gene on chromosome 19p13. Also known as: FHH type 2, HHC2, familial hypocalciuric hypercalcemia type 2, hpocalciuric hypercalcemia, type II, hypocalciuric hypercalcemia type II.