S42.018B Nondisplaced fracture of sternal end of left clavicle, initial encounter for open fracture

Name of the Condition

• Nondisplaced fracture of sternal end of left clavicle, initial encounter for open fracture (ICD-10 Code: S42.018B)

Summary

This condition involves a break at the sternal (chest) end of the left clavicle where the bone fragments remain in their normal position, and the fracture is open (exposing the bone to the external environment). The clavicle, or collarbone, connects the arm to the body and is a common site for fractures due to its exposed position. Nondisplaced fractures mean the bone fragments are aligned, but the open nature of the fracture requires specific management to prevent infection.

Causes

Fractures of the clavicle’s sternal end typically result from direct trauma to the shoulder or chest, such as a fall onto the shoulder, a blow to the chest, or a motor vehicle accident. The open nature of the fracture occurs when the skin is broken, allowing the fractured bone to be exposed to the outside environment.

Risk Factors

Factors increasing the risk include participation in contact sports, osteoporosis or reduced bone density, and activities with a high risk of falls or collisions. Older adults may be more susceptible due to age-related bone changes, and open fractures are more likely with high-energy trauma or penetrating injuries.

Symptoms

Symptoms often include sudden pain at the sternal end of the left clavicle, swelling, bruising, and tenderness. A visible or palpable deformity may be present, along with difficulty moving the shoulder or arm due to pain. The open fracture may show signs of skin penetration, bleeding, or bone exposure.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and deformity, including checking for open wounds. X-ray imaging confirms the fracture and its location, while additional imaging like CT may be used for complex cases. The open nature of the fracture is identified by visible skin breach or bone exposure.

Treatment Options

Treatment focuses on cleaning the open wound to prevent infection, stabilizing the fracture (often with a sling or brace), and managing pain. Surgical intervention may be needed if the fracture is unstable or if there is significant soft tissue damage. Antibiotics are typically prescribed to reduce infection risk.

Prognosis and Follow-Up

With proper treatment, most nondisplaced open fractures heal well, but recovery may take several weeks. Follow-up appointments monitor healing and check for infection. Physical therapy may be recommended to restore shoulder mobility once the fracture is stable.

Complications

Potential complications include infection (due to the open nature of the fracture), delayed healing, or nonunion (failure to heal). Nerve or blood vessel damage near the fracture site is also possible, though less common.

Lifestyle & Prevention

Avoid high-impact activities until fully healed. Use protective gear during sports or activities with fall risks. Maintain bone health through adequate calcium and vitamin D intake to reduce fracture risk.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, visible bone exposure, uncontrolled bleeding, or signs of infection (e.g., redness, pus, fever). Follow up with a healthcare provider if pain worsens or does not improve with treatment.

Tips for Medical Coders

Document the fracture as nondisplaced and open, specifying the left clavicle’s sternal end. Include details of the initial encounter and any associated injuries. Ensure the open fracture is clearly noted, as this impacts coding and treatment documentation.