Any autosomal recessive hypophosphatemic rickets in which the cause of the disease is a mutation in the ENPP1 gene. The disease is MONDO_0013219 (hypophosphatemic rickets, autosomal recessive, 2). Also known as: Autosomal Recessive Hypophosphatemic Rickets Type 2, ENPP1 autosomal recessive hypophosphatemic rickets, autosomal recessive hypophosphatemic rickets caused by mutation in ENPP1, hypophosphatemic rickets, autosomal recessive, type 2.