Open wound of finger(s), with tendon involvement

This code signifies an open injury to one or more fingers where the wound extends deep enough to involve the underlying tendons. This typically implies a laceration, puncture, or avulsion that has compromised the integrity of the extensor or flexor tendons of the digits. Such injuries often result in impaired finger movement and require surgical repair.

Use this code when documentation clearly indicates an open wound of the finger(s) with explicit mention of tendon involvement, such as "laceration with transected flexor digitorum profundus tendon" or "open injury to index finger with extensor tendon damage." This code is appropriate for initial encounters and subsequent care related to the tendon injury itself.

• Ensure the documentation specifies "open wound" and explicitly states "tendon involvement" to differentiate from superficial injuries or those involving only nerves/vessels.
• Do not use for closed tendon injuries (e.g., mallet finger without an open wound) or for open wounds without documented tendon involvement.
• Consider additional codes for associated injuries, such as nerve damage (e.g., 955.0-955.2) or bone fractures (e.g., 816.0-816.1), if documented.