Unsp injury of ulnar artery at wrs/hnd lv of left arm, subs

This code signifies an unspecified injury to the ulnar artery in the left wrist or hand, meaning the exact nature of the arterial damage (e.g., laceration, contusion) is not documented. This diagnosis is used when the patient is receiving follow-up care for the initial injury.

This code is appropriate for subsequent encounters when a patient presents for ongoing treatment, monitoring, or rehabilitation related to an initial, unspecified ulnar artery injury in the left wrist or hand. This includes scenarios such as wound checks, physical therapy, or follow-up imaging after the initial acute phase.

• Ensure documentation clearly indicates a "subsequent encounter" for the injury.
• Verify the injury is to the ulnar artery specifically and not another vessel.
• Confirm the injury location is at the wrist or hand level of the left arm.