Renal hypomagnesemia 7 with or without dilated cardiomyopathy (OMIM phenotype number 620152) is an AD condition due to an inactivating variant in RRAGD, resulting in activation of mTOR signaling, which leads to renal salt wasting resulting in hypomagnesemia, polyuria, hypokalemia, hypochloremia, metabolic alkalosis, hypercalciuria, and NC (Schlingmann et al., 2021). Here, RRAGD is linked to Hypercalciuria.