S56.109 - Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at forearm level S56.1 - Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.10 - Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level S56.109 - Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at forearm level