Vitamin D-Dependent Rickets Type 2b is related to vitamin d-dependent rickets, type 2b, with normal vitamin d receptor and nephrolithiasis. An important gene associated with Vitamin D-Dependent Rickets Type 2b is PFDN4 (Prefoldin Subunit 4), and among its related pathways/superpathways are Proximal tubule transport and FGF23 signaling in hypophosphatemic rickets and related disorders. Affiliated tissues include bone, and related phenotype is skeleton.