S42.013 Anterior displaced fracture of sternal end of unspecified clavicle

Name of the Condition

• Anterior displaced fracture of sternal end of unspecified clavicle (ICD-10 Code: S42.013)

Summary

This condition involves a break at the sternal (chest) end of the clavicle, with the bone fragment displaced forward. The clavicle, or collarbone, connects the arm to the body and is a common site for fractures due to its exposed position. Displacement indicates the bone fragments are not aligned, which may affect healing and require specific management.

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 anterior displacement specifically occurs when the fracture fragment moves toward the front of the body.

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.

Symptoms

Symptoms often include sudden pain at the sternal end of the clavicle, swelling, bruising, and tenderness. A visible or palpable deformity may be present, along with difficulty moving the shoulder or arm due to pain.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and deformity. X-ray imaging is typically used to confirm the fracture and its displacement. Additional imaging, such as CT or MRI, may be considered for complex cases or to evaluate associated injuries.

Treatment Options

Treatment depends on the severity of displacement and patient factors. Non-displaced or minimally displaced fractures may be managed with immobilization (e.g., a sling) and pain relief. Displaced fractures might require closed reduction (realignment) or, in some cases, surgical fixation to restore alignment and stability.

Prognosis and Follow-Up

Most fractures heal within 6–12 weeks with appropriate treatment. Follow-up care includes monitoring for healing progress, physical therapy to restore strength and mobility, and regular imaging to ensure proper alignment. Complications like nonunion or malunion are rare but possible with severe displacement or inadequate treatment.

Complications

Potential complications include nonunion (failure to heal), malunion (healing in an abnormal position), nerve or blood vessel injury near the fracture site, and chronic pain. Infection is rare but may occur with surgical intervention.

Lifestyle & Prevention

Preventive measures include using protective gear during contact sports, maintaining bone health through adequate calcium and vitamin D intake, and avoiding high-risk activities. For older adults, fall prevention strategies (e.g., home modifications) can reduce fracture risk.

When to Seek Professional Help

Seek immediate medical attention for severe pain, visible deformity, inability to move the arm, or signs of nerve/vessel injury (e.g., numbness, discoloration). Follow up with a healthcare provider if pain worsens, swelling persists, or mobility does not improve with treatment.

Tips for Medical Coders

Document the fracture location (sternal end), displacement direction (anterior), and laterality (unspecified) to support code assignment. Ensure clinical notes specify the absence of bilateral involvement or other modifiers if applicable. Code S42.013 is used when the clavicle side is not documented or applicable.