Multiple and unspecified open wound of upper limb, with tendon involvement

This code signifies an open wound affecting multiple or unspecified areas of the upper extremity, specifically involving damage to tendons. This injury typically results in a break in the skin exposing underlying tendon structures, potentially leading to impaired movement and function of the affected limb.

This code is appropriate for traumatic injuries to the arm, forearm, wrist, or hand where the medical record clearly documents an open wound and involvement of one or more tendons. Documentation should specify the open nature of the wound and the presence of tendon laceration, rupture, or other damage.

• Ensure documentation explicitly states "tendon involvement" and "open wound" of the upper limb.
• Distinguish from superficial open wounds or those involving only muscle or nerve, which would use different codes.
• If a specific site or type of open wound is documented (e.g., open fracture), a more specific code should be chosen.