S35.513 Injury of unspecified iliac artery

Name of the Condition

• Injury of unspecified iliac artery

Summary

An injury of the unspecified iliac artery involves damage to the major vascular structure supplying blood to the pelvis and lower extremities. This condition requires prompt evaluation to assess vascular integrity and prevent complications such as hemorrhage or ischemia.

Causes

Direct trauma to the pelvis or lower abdomen, such as from motor vehicle accidents, falls, or penetrating injuries. Blunt force impact or crush injuries that disrupt vascular integrity. Iatrogenic causes, including surgical procedures or medical interventions in the pelvic region.

Risk Factors

• Participation in high-risk activities with potential for pelvic trauma.
• Occupations involving exposure to machinery or environments with crush hazards.
• Pre-existing vascular conditions that may predispose to injury.
• Advanced age, which can affect tissue elasticity and healing.

Symptoms

• Pain, swelling, or tenderness in the pelvic or groin region.
• Visible bruising or discoloration over the injured area.
• Signs of internal bleeding, such as hypotension or tachycardia.
• Altered skin temperature or sensation in the lower extremities.
• Possible hematoma or pulsatile mass at the injury site.

Diagnosis

Physical examination to assess for signs of trauma or hemodynamic instability. Imaging studies, such as CT angiography or duplex ultrasound, to evaluate vascular injury and blood flow. Laboratory tests to assess for anemia or coagulopathy.

Treatment Options

Hemodynamic stabilization with fluid resuscitation or blood transfusion. Surgical repair or endovascular intervention to restore vascular integrity. Anticoagulation or antiplatelet therapy to prevent thrombosis. Monitoring for complications such as compartment syndrome or organ ischemia.

Prognosis and Follow-Up

Prognosis depends on the severity of the injury and timeliness of treatment. Close follow-up to monitor for recurrent bleeding, thrombosis, or vascular complications. Long-term surveillance may be required to assess for aneurysm formation or stenosis.

Complications

Hemorrhagic shock due to uncontrolled bleeding. Ischemia or infarction of pelvic organs or lower extremities. Thrombosis or embolism leading to vascular occlusion. Infection or sepsis from open injuries. Chronic pain or functional impairment.

Lifestyle & Prevention

Avoid high-risk activities that increase the likelihood of pelvic trauma. Use protective equipment during occupations with crush hazards. Maintain vascular health through regular exercise and a balanced diet. Promptly address pre-existing conditions like hypertension or atherosclerosis.

When to Seek Professional Help

Seek immediate medical attention for severe pelvic or abdominal pain, uncontrolled bleeding, or signs of shock (e.g., dizziness, rapid heartbeat). Consult a healthcare provider for persistent symptoms after trauma, such as swelling, discoloration, or altered sensation in the lower extremities.

Tips for Medical Coders

Code S35.513 is used when the iliac artery injury is unspecified (not documented as right or left). Ensure documentation supports the absence of laterality. Verify that the injury is acute and related to trauma, as chronic or iatrogenic injuries may require different coding. Review the medical record for details on the mechanism of injury and any associated complications to ensure accurate coding.