S66.011 - Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level S66.0 - Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level S66.01 - Strain of long flexor muscle, fascia and tendon of thumb at wrist and hand level S66.011 - Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level