Objective: To publicize the Spanish translation of Version 12 of the sports injury classification system called Orchard Sports Injury Classification System and to propose a modification to include a numerical code that reflects the impact of the injury on sports functionality. Method: The members of the working group on the epidemiology of sports injury, of the Study Group of the Muscle-Tendon System, of the Spanish Society of Sports Traumatology, carried out a bibliographic review on the epidemiological classification systems of injuries, three face-to-face consensus meetings and various online works, following the DELPHI work methodology. Results: The Spanish translation of version 12 of the Orchard Sports Injury Classification System is accessible completely and free of charge at: https://gesmute.es/traduccion-espanola-osics-12/ It is proposed to add, at the end of the current coding of version 12, a numerical code (0: No Functional impairment; 1: Limits Sports Activity; 2: Prevents Sports Activity; 3: Limits Daily Life Activities), to indicate the functional repercussion that produces the injury. Conclusions: We present the Spanish translation of version 12 of the Orchard Sports Injury Classification System. We propose as an improvement the inclusion of functionality criteria in sports injury classifications, our proposal could be an improvement to the Orchard Sports Injury Classification System version 12.