Facts
J., born in 1960, is insured with Concordia, in particular under the compulsory HIA. She suffers from a congenital malformation of the lower jaw (Congenital mandibular prognathism) with an ANB angle of -5 degrees. This congenital malformation has led to the loss of anterior and lateral teeth, resulting in an inability to chew. On May 19, 1998, Dr. I. requested Concordia to cover the costs of a treatment consisting of a maxillary implant with a fixed prosthesis of 12 elements on 6 implants. Concordia refused to cover the costs. J. then filed an appeal against this decision, which was rejected by the insurance court of the canton of St. Gallen.Considerations
The Federal Insurance Court considers that the Congenital mandibular prognathism mentioned in Art. 19a para. 2 no. 22 HIBO must be equated with a serious disease of the masticatory system within the meaning of Art. 31 para. 1 let. a HIA. Consequently, the costs of the dental treatment proposed by Dr. I., which aims to remedy the…