Any nephronophthisis in which the cause of the disease is a mutation in the NPHP3 gene. The disease is nephronophthisis 3 (Monarch Disease Ontology term MONDO_0011456). Also known as: NPH3, NPHP3, NPHP3 nephronophthisis (disease), nephronophthisis (disease) caused by mutation in NPHP3, nephronophthisis type 3.