S42.014P Posterior displaced fracture of sternal end of right clavicle, subsequent encounter for fracture with malunion

Name of the Condition

• Posterior displaced fracture of sternal end of right clavicle, subsequent encounter for fracture with malunion (ICD-10 Code: S42.014P)

Summary

This condition involves a break at the sternal (chest) end of the right clavicle, with the bone fragment displaced backward. 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. The "subsequent encounter" and "malunion" specify this is a follow-up visit for a fracture that has healed in an abnormal position, meaning the bone fragments did not align correctly during healing.

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 posterior displacement specifically occurs when the fracture fragment moves toward the back of the body. Malunion may develop if the fracture was not properly aligned during initial treatment or if healing was incomplete.

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. Malunion risk is higher with inadequate immobilization, poor blood supply to the area, or severe initial displacement.

Symptoms

Symptoms often include persistent pain at the sternal end of the right clavicle, swelling, and tenderness. A visible or palpable deformity may be present, along with limited shoulder or arm movement due to pain or mechanical issues from the misaligned bone.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and deformity. X-rays or other imaging (e.g., CT scans) confirm the malunion and assess alignment. The provider evaluates functional impact, such as range of motion or strength, to guide management.

Treatment Options

Treatment depends on symptoms and functional impact. Options may include physical therapy to improve mobility and strength, pain management, or surgical correction if the malunion causes significant disability or discomfort. Bracing or activity modification may also be recommended.

Prognosis and Follow-Up

Prognosis varies based on the degree of malunion and symptoms. Many patients manage symptoms with conservative care, while others may require intervention for persistent pain or functional limitations. Follow-up visits monitor healing, symptom resolution, and functional recovery.

Complications

Complications can include chronic pain, reduced shoulder mobility, or nerve irritation from the misaligned bone. In severe cases, malunion may affect arm function or lead to long-term discomfort.

Lifestyle & Prevention

Preventive measures include using protective gear during contact sports, maintaining bone health through diet and exercise, and avoiding high-risk activities. For those with a history of clavicle fractures, proper initial treatment and follow-up reduce malunion risk.

When to Seek Professional Help

Seek care if pain worsens, swelling increases, or movement becomes severely limited. New numbness, tingling, or weakness in the arm may indicate nerve involvement and requires prompt evaluation.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture with malunion. Include details on the malunion’s impact (e.g., pain, functional limitation) and any treatment provided. Ensure the code S42.014P is used only when the fracture has healed in an abnormal position and the patient is receiving follow-up care.