Unsp inj extn musc/fasc/tend l lit fngr at wrs/hnd lv, init

This code signifies an injury to the extensor muscle, fascia, or tendon of the left little finger, occurring anywhere from the wrist to the hand. The specific nature of the injury (e.g., strain, tear, rupture) is not documented or is unknown at the time of the initial encounter.

Apply this code when a patient presents with a new injury to the extensor mechanism of their left little finger, and the physician's documentation does not specify the exact type of injury. This is appropriate for initial evaluations where further diagnostic workup may be pending.

• Ensure the documentation clearly indicates the injury is to the left little finger and involves the extensor structures.
• Only use this "unspecified" code when a more specific code (e.g., strain, laceration) cannot be determined from the medical record.
• Append subsequent encounter characters (D, S) for follow-up care or sequelae as appropriate.