EE GOT OUT OF TRUCK AND WALKED AROUND TO THE REAR OF THE TRUCK. THE AREA AROUND THE TRUCK WAS COVERED WITH ICE. EE FELL ON THE ICE AND HIT A ROCK THAT WAS STICKING UP THRU THE ICE. THE PAIN GR ADUALLY WORSENED AND EE WENT TO THE DR. ON 1-12-01. EE NOTIFIED OFFICE ON 1-17-01.