Injury to ulnar blood vessels

This code signifies damage to the ulnar artery or vein, which are major blood vessels supplying the forearm and hand. Such injuries can result from trauma, lacerations, punctures, or crush injuries, leading to compromised blood flow or hemorrhage in the affected limb.

Apply this code when documentation explicitly states an injury to the ulnar artery or ulnar vein. This includes cases of transection, laceration, contusion, or rupture of these specific vessels due to external forces. Supporting documentation should detail the mechanism of injury and the specific vessel involved.

• Differentiate between ulnar and radial vessel injuries; ensure the documentation specifies "ulnar."
• Always code the underlying cause of the injury (e.g., open wound, fracture) in addition to the vessel injury.
• Consider additional codes for associated nerve damage (e.g., ulnar nerve) if documented.