Hyperthyroidism, Nonautoimmune, also known as familial hyperthyroidism due to mutations in tsh receptor, is related to familial hyperthyroidism due to mutations in tsh receptor and hypothyroidism, congenital, nongoitrous, 1. An important gene associated with Hyperthyroidism, Nonautoimmune is TSHR (Thyroid Stimulating Hormone Receptor). Affiliated tissues include thyroid and bone, and related phenotypes are intellectual disability and hyperthyroidism