S42.264B Nondisplaced fracture of lesser tuberosity of right humerus, initial encounter for open fracture

Name of the Condition

• Nondisplaced fracture of lesser tuberosity of right humerus, initial encounter for open fracture (ICD Code: S42.264B)

Summary

This condition involves a nondisplaced fracture of the lesser tuberosity, a bony prominence on the front of the right humerus near the shoulder joint. The fracture is characterized by an intact bone structure without significant separation of fragments, though the injury is open (exposing the fracture site to the external environment). The lesser tuberosity serves as an attachment point for the subscapularis muscle, and fractures in this area may affect muscle function or joint stability.

Causes

Nondisplaced fractures of the lesser tuberosity typically result from direct trauma, such as falls onto the shoulder, motor vehicle accidents, or high-impact sports injuries. Open fractures occur when the overlying skin is broken, often due to high-energy trauma that disrupts both bone and soft tissue.

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.
• Trauma involving significant force or penetration, increasing the risk of open injury.

Symptoms

• Intense pain in the shoulder or upper arm.
• Swelling, bruising, and visible deformity at the fracture site.
• Open wound or exposed bone at the injury 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, with careful evaluation of the open wound. Imaging tests, including X-rays, to visualize the fracture pattern and confirm nondisplacement. CT scans or MRIs may be used for detailed assessment of complex fractures or soft tissue damage. Wound inspection to determine the extent of open injury.

Treatment Options

• Immediate wound care and cleaning to prevent infection.
• Stabilization with a sling or brace to immobilize the arm.
• Pain management with medications or regional anesthesia.
• Surgical intervention may be required for open fractures to clean the wound and ensure proper healing.
• Physical therapy to restore range of motion and strength after initial healing.

Prognosis and Follow-Up

Prognosis is generally favorable with proper treatment, though open fractures carry a higher risk of infection. Follow-up appointments are necessary to monitor healing, assess for complications, and adjust treatment plans. Rehabilitation may be required to restore full function, depending on the severity of the injury.

Complications

• Infection at the open wound site.
• Delayed healing or nonunion of the fracture.
• Nerve or blood vessel damage affecting arm function.
• Reduced range of motion or chronic pain.
• Post-traumatic arthritis in the shoulder joint.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports, construction).
• Maintain bone health through diet and exercise to reduce fracture risk.
• Avoid falls by modifying the home environment (e.g., removing tripping hazards).
• Seek prompt medical care for open wounds to minimize infection risk.

When to Seek Professional Help

• Severe pain or swelling that does not improve.
• Open wound or exposed bone at the injury site.
• Numbness, tingling, or loss of sensation in the arm or hand.
• Inability to move the arm or bear weight.
• Signs of infection, such as redness, warmth, or pus at the wound.

Tips for Medical Coders

Document the nondisplaced nature of the fracture, the open wound status, and the initial encounter context. Include details about the anatomical location (right humerus) and any associated injuries or treatments. Ensure documentation supports the open fracture classification and distinguishes it from closed or displaced fractures.