S65.0 Injury of ulnar artery at wrist and hand level

Name of the Condition

• Injury of ulnar artery at wrist and hand level

Summary

An injury of the ulnar artery at the wrist and hand level involves damage to the ulnar artery in this anatomical region, which may result from trauma or other mechanisms. This condition requires evaluation to assess the extent of vascular injury and determine appropriate management, as the ulnar artery is a critical blood vessel supplying the hand and fingers.

Causes

Direct trauma to the wrist or hand, such as lacerations, puncture wounds, or crush injuries. Penetrating injuries from sharp objects like glass, knives, or tools. Blunt force trauma causing vessel compression or disruption. Iatrogenic injury during surgical procedures involving the wrist or hand.

Risk Factors

• Participation in activities with a risk of hand or wrist trauma (e.g., sports, manual labor).
• Use of sharp objects or tools without proper safety precautions.
• Preexisting vascular conditions that may weaken vessel integrity.
• Advanced age, which may be associated with reduced tissue resilience.

Symptoms

• Visible bleeding or hematoma at the injury site.
• Pain, swelling, or tenderness in the wrist or hand.
• Weak or absent pulses in the affected digits.
• Coolness, pallor, or discoloration of the hand or fingers.
• Numbness or tingling in the ulnar nerve distribution (e.g., little finger, ring finger).
• Difficulty moving the hand or fingers due to pain or ischemia.

Diagnosis

Physical examination to assess for visible injuries, pulses, and neurovascular status. Doppler ultrasound or angiography to evaluate arterial flow and identify vessel damage. Imaging studies (e.g., X-rays) to rule out associated fractures or soft tissue injuries. Assessment for signs of compartment syndrome or ischemia.

Treatment Options

• Direct pressure to control bleeding and stabilize the injury.
• Surgical repair or revascularization of the ulnar artery, if indicated.
• Anticoagulation or antiplatelet therapy to prevent thrombosis, as determined by clinical context.
• Wound care and infection prevention for associated soft tissue injuries.
• Rehabilitation to restore function and address any residual deficits.

Prognosis and Follow-Up

Prognosis depends on the severity of the injury, time to treatment, and presence of complications. Early intervention improves outcomes by preserving vascular supply to the hand. Follow-up includes monitoring for signs of infection, ischemia, or functional impairment. Long-term care may involve physical therapy to optimize recovery.

Complications

• Ischemia or tissue necrosis due to inadequate blood flow.
• Compartment syndrome requiring emergent intervention.
• Infection of the wound or vascular repair site.
• Chronic pain or functional limitations in the hand or wrist.
• Long-term vascular insufficiency or thrombosis.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., gloves for manual labor).
• Avoid handling sharp objects carelessly to reduce injury risk.
• Maintain awareness of hand and wrist positioning in hazardous environments.
• Seek prompt medical attention for any trauma to the wrist or hand.

When to Seek Professional Help

• Visible bleeding that does not stop with pressure.
• Severe pain, swelling, or discoloration of the hand or fingers.
• Numbness, tingling, or loss of sensation in the affected digits.
• Inability to move the hand or fingers due to pain or weakness.
• Signs of infection, such as redness, warmth, or pus at the injury site.

Tips for Medical Coders

Document the specific location (wrist or hand level) and nature of the ulnar artery injury (e.g., laceration, contusion, or disruption). Include details about the mechanism of injury, associated complications, and any interventions performed. Ensure clinical documentation supports the diagnosis and aligns with the ICD-10-CM coding guidelines for vascular injuries.