S42.262A Displaced fracture of lesser tuberosity of left humerus, initial encounter for closed fracture

Name of the Condition

• Displaced fracture of lesser tuberosity of left humerus, initial encounter for closed fracture (ICD Code: S42.262A)

Summary

This condition involves a displaced fracture of the lesser tuberosity, a bony prominence on the left humerus near the shoulder joint. The fracture is closed (skin intact) and represents the initial encounter for treatment. The lesser tuberosity serves as an attachment point for the subscapularis muscle, and displacement may affect muscle function or joint stability.

Causes

Displaced fractures of the lesser tuberosity typically result from direct trauma, such as falls onto the shoulder, motor vehicle accidents, or high-impact sports injuries. Low-energy trauma may also cause this type of fracture in individuals with weakened bones.

Risk Factors

• Advanced age and osteoporosis, which reduce bone density.
• Participation in contact sports or activities with a high risk of falls.
• Previous fractures or bone disorders that weaken the skeletal structure.

Symptoms

• Intense pain in the shoulder or upper arm.
• Swelling, bruising, and visible deformity at the fracture site.
• Inability to move the arm or bear weight.
• Numbness or tingling in the hand or fingers if nerve involvement occurs.

Diagnosis

Physical examination to assess pain, range of motion, and deformity. Imaging tests, including X-rays, to visualize the fracture pattern and displacement. CT scans or MRIs may be used for detailed assessment of complex fractures or soft tissue damage.

Treatment Options

• Immobilization with a sling or brace to stabilize the fracture.
• Pain management with medications or ice therapy.
• Physical therapy to restore range of motion and strength after healing.
• Surgical intervention for severe displacement or unstable fractures.

Prognosis and Follow-Up

Most fractures heal within 6–8 weeks with proper immobilization and care. Follow-up imaging may be required to confirm healing. Long-term outcomes depend on the severity of displacement and adherence to rehabilitation.

Complications

• Nonunion or malunion of the fracture.
• Nerve or blood vessel damage.
• Chronic pain or reduced shoulder function.
• Post-traumatic arthritis in the shoulder joint.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health with calcium and vitamin D.
• Avoid falls by modifying home environments (e.g., removing tripping hazards).
• Engage in strength training to support joint stability.

When to Seek Professional Help

Seek immediate care for severe pain, visible deformity, or inability to move the arm. Contact a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the fracture as displaced, specify the left humerus, and confirm it is a closed fracture with no open wound. Include details of the initial encounter to ensure accurate coding. Note any associated injuries or comorbidities that may impact treatment.