S66.301 - Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level S66.3 - Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level S66.30 - Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level S66.301 - Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level