S45.002 Unspecified injury of axillary artery, left side

Name of the Condition

• Unspecified injury of axillary artery, left side

Summary

This condition involves damage to the axillary artery, a major blood vessel in the left armpit region. The injury may result from trauma and can affect blood flow to the left upper limb, potentially leading to complications if not addressed.

Causes

Common causes include penetrating or blunt trauma, such as stab wounds, gunshot injuries, fractures, or dislocations of the shoulder or upper arm. Surgical procedures in the area may also lead to accidental injury.

Risk Factors

• Engaging in high-risk activities with potential for trauma, such as contact sports or motor vehicle accidents. Pre-existing vascular conditions or anatomical variations may increase susceptibility.

Symptoms

• Symptoms may include severe pain, swelling, bruising, or a visible wound in the left armpit. Reduced or absent pulse in the left arm, coldness, paleness, or weakness of the hand or arm may indicate compromised blood flow.

Diagnosis

Diagnosis typically involves a physical examination to assess pulse, sensation, and movement. Imaging tests like Doppler ultrasound, CT angiography, or MR angiography may be used to evaluate the artery and detect damage.

Treatment Options

• Treatment may include surgical repair to restore blood flow, use of anticoagulants or antiplatelet medications to prevent clots, and monitoring for complications.

Prognosis and Follow-Up

Prognosis depends on the severity of the injury and timeliness of treatment. Follow-up may involve monitoring for signs of impaired circulation, repeat imaging, or rehabilitation to restore function.

Complications

• Potential complications include limb ischemia, nerve damage, infection, or chronic pain. Severe cases may require amputation if blood flow is not restored promptly.

Lifestyle & Prevention

• Avoid high-risk activities without proper protection. Use caution during sports or manual labor to prevent trauma. Maintain vascular health through regular exercise and a balanced diet.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, swelling, or visible bleeding in the left armpit, or if the left arm feels cold, numb, or weak.

Tips for Medical Coders

Document the side (left) and any associated details, such as trauma mechanism or imaging findings, to support code assignment. Ensure the injury is clearly linked to the axillary artery and not other structures.