All service disability agencies use the VASRD system for classifying the physical condition related to the potential disability and for rating the level of severity of the condition. Injuries are typically assigned codes that identify the residual condition on which the rating is based. There are several limitations to this approach. First, this system cannot identify the cause of injury or the specific diagnosis for the injury (e.g., fracture, dislocation, sprain). Specific injury codes do not exist, only broad groups. Second, a considerable period of time could have elapsed between the time when the injury occurred and the time when the disability case is reviewed. Third, each service has developed its own interpretation of the codes in situations where a medical condition is not listed.