M84.352 Stress fracture, left femur

Name of the Condition

• Stress Fracture, Left Femur

Summary

A stress fracture of the left femur is a small crack or severe bruising within the left femoral bone, typically resulting from repetitive force or overuse. This injury occurs when the bone's ability to repair itself is exceeded by mechanical stress, often affecting weight-bearing structures.

Causes

Stress fractures develop due to repeated mechanical stress on the left femur that outpaces the bone's natural repair process. Common causes include increased physical activity, improper training techniques, and inadequate rest between activities.

Risk Factors

• Participation in high-impact sports (e.g., running, jumping)
• Sudden increase in physical activity level
• Poor nutrition, including insufficient calcium or vitamin D
• Low bone density or osteoporosis
• Overuse from repetitive weight-bearing motions

Symptoms

• Pain in the thigh or groin that worsens with activity
• Swelling and tenderness around the fracture site
• Pain that diminishes with rest
• Difficulty bearing weight on the affected leg

Diagnosis

Diagnosis involves a physical examination by a healthcare provider, followed by imaging tests such as X-rays, MRI, or bone scans to confirm the fracture. Early stress fractures may not be visible on standard X-rays.

Treatment Options

• Rest and activity modification to allow bone healing
• Pain management with over-the-counter or prescribed medications
• Gradual return to activity under medical guidance
• Physical therapy to restore strength and mobility
• In rare cases, surgical intervention for severe or displaced fractures

Prognosis and Follow-Up

Most stress fractures of the left femur heal with proper rest and treatment within 6–8 weeks. Follow-up care typically includes monitoring for healing progress and gradual resumption of activity. Adherence to treatment plans is crucial to prevent recurrence or complications.

Complications

• Delayed healing or nonunion if not properly managed
• Progression to a complete fracture with continued activity
• Chronic pain or functional impairment
• Increased risk of future stress fractures

Lifestyle & Prevention

• Gradually increase physical activity to avoid overuse
• Ensure adequate nutrition, including calcium and vitamin D
• Use proper footwear and training techniques
• Incorporate rest days into exercise routines
• Address underlying bone density issues if present

When to Seek Professional Help

Seek medical attention if you experience persistent thigh or groin pain, especially with weight-bearing activity, or if symptoms worsen despite rest. Prompt evaluation is important to prevent complications and ensure appropriate treatment.

Tips for Medical Coders

Document the specific location (left femur) and confirm the diagnosis of a stress fracture. Ensure clinical notes support the use of M84.352 by detailing the affected bone, mechanism of injury, and any imaging or physical exam findings. Verify that the fracture is not a pathological fracture (e.g., due to osteoporosis) to avoid miscoding.