S56.423 - Laceration of extensor muscle, fascia and tendon of right middle finger at forearm level S56.4 - Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.42 - Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level S56.423 - Laceration of extensor muscle, fascia and tendon of right middle finger at forearm level