Major laceration of left vertebral artery, initial encounter

This code signifies a significant, deep tear or cut in the left vertebral artery, a major blood vessel supplying the brain. This injury typically results in substantial bleeding and can lead to severe neurological deficits due to compromised cerebral blood flow.

Apply this code for a newly diagnosed, acute major laceration of the left vertebral artery, often seen in cases of penetrating trauma to the neck or severe blunt force injury. Documentation should clearly state "major laceration" or "complete transection" of the left vertebral artery and confirm the initial treatment phase.

• Differentiate from minor lacerations or contusions of the vertebral artery; this code implies a severe injury.
• Ensure laterality is correctly identified as "left."
• Always sequence this code as the primary diagnosis if it is the reason for the encounter, followed by codes for associated injuries or complications.