S66.115 - Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level S66.1 - Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level S66.11 - Strain of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level S66.115 - Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level