Court of Justice 13 January 2005, C-145/03 (Heirs of Annette Keller v Instituto Nacional de la Seguridad Social (INSS) and Instituto Nacional de Gestión Sanitaria (Ingesa).)

Opinion of the Advocate-General Opinion of the Advocate-General I – Introduction 1. The main question to be dealt with in this case is whether the competent social security institution in a Member State, which has authorised an employed person, affiliated to its public health insurance system, to receive medical treatment in another Member State, is obliged to reimburse the costs of emergency,