S56.121 - Laceration of flexor muscle, fascia and tendon of right index finger at forearm level S56.1 - Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.12 - Laceration of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.121 - Laceration of flexor muscle, fascia and tendon of right index finger at forearm level