S66.22 - Laceration of extensor muscle, fascia and tendon of thumb at wrist and hand level S66.2 - Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level S66.22 - Laceration of extensor muscle, fascia and tendon of thumb at wrist and hand level S66.221 - Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand level S66.222 - Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand level S66.229 - Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level