I70.245 Atherosclerosis of native arteries of left leg with ulceration of other part of foot

Name of the Condition

• Common Name: Peripheral Artery Disease (PAD) with foot ulceration
• Medical Term: Atherosclerosis of native arteries of left leg with ulceration of other part of foot
• ICD-10 Code: I70.245

Summary

Atherosclerosis of native arteries of left leg with ulceration of other part of foot is a condition where plaque buildup narrows the arteries supplying blood to the left leg, leading to reduced blood flow and the development of open sores (ulcers) on the foot (excluding the heel or toe). This is a specific form of peripheral artery disease (PAD) that can cause tissue damage and may progress to severe complications if untreated.

Causes

Atherosclerosis develops due to damage to the arterial lining, often triggered by factors like high cholesterol, high blood pressure, or inflammation. Over time, plaque accumulates at the site of injury, thickening and hardening the artery walls, which restricts blood flow to the left leg. The reduced blood flow impairs oxygen and nutrient delivery to tissues, leading to ulcer formation and potential tissue death.

Risk Factors

• Age (more common in older adults)
• Family history of cardiovascular disease
• High cholesterol or triglyceride levels
• Hypertension (high blood pressure)
• Smoking or tobacco use
• Diabetes or insulin resistance
• Obesity or sedentary lifestyle
• Unhealthy diet (high in saturated fats, trans fats, or sodium)

Symptoms

• Open sores or ulcers on the foot (excluding heel or toe)
• Persistent pain or cramping in the left leg
• Reduced sensation or numbness in the foot
• Slow-healing wounds
• Changes in skin color (pale, bluish, or reddish)
• Weak or absent pulses in the left foot

Diagnosis

Diagnosis involves a physical exam to assess pulses, skin changes, and ulcer characteristics. Non-invasive tests like ankle-brachial index (ABI) or Doppler ultrasound may be used to evaluate blood flow. Imaging studies (e.g., angiography) can identify arterial blockages. Blood tests may check for diabetes, cholesterol, or inflammation markers.

Treatment Options

Treatment focuses on improving blood flow and healing ulcers. Lifestyle changes (smoking cessation, diet, exercise) are key. Medications may include antiplatelet agents, cholesterol-lowering drugs, or blood pressure medications. Revascularization procedures (angioplasty, bypass) may be needed for severe blockages. Wound care and infection management are critical.

Prognosis and Follow-Up

Prognosis depends on ulcer severity, treatment response, and underlying conditions. Regular follow-up is essential to monitor healing, manage risk factors, and prevent recurrence. Untreated cases may lead to tissue loss or amputation. Long-term management of cardiovascular risk factors is crucial.

Complications

• Non-healing ulcers or infection
• Tissue death (gangrene)
• Amputation of the left foot or leg
• Increased risk of heart attack or stroke
• Chronic pain or disability

Lifestyle & Prevention

• Quit smoking and avoid tobacco
• Maintain a healthy diet (low in saturated fats, high in fiber)
• Exercise regularly (e.g., walking) to improve circulation
• Manage diabetes, blood pressure, and cholesterol
• Inspect feet daily for sores or injuries
• Wear proper footwear to prevent trauma

When to Seek Professional Help

Seek care if you notice new or worsening foot ulcers, persistent leg pain, or signs of infection (redness, swelling, fever). Immediate attention is needed for severe pain, blackened tissue, or non-healing wounds to prevent complications.

Tips for Medical Coders

Document the location of the ulcer (other part of the foot) and confirm it is associated with atherosclerosis of the native left leg arteries. Ensure clinical notes specify the ulcer’s presence and exclude heel or toe involvement to support accurate coding. Verify no conflicting diagnoses (e.g., diabetic foot ulcers) are present unless appropriately coded.