S23.428D Other sprain of sternum, subsequent encounter

Name of the Condition

• Common name: Other sternum sprain (subsequent encounter)
• Medical term: Other sprain of sternum, subsequent encounter

Summary

An other sprain of the sternum, subsequent encounter, refers to a follow-up visit for a previously diagnosed sprain of the sternum’s ligaments. This code is used when the patient is receiving active treatment or undergoing evaluation during the healing phase of the injury. The condition involves overstretching or tearing of ligaments supporting the sternum, excluding specific joint-related sprains (e.g., sternoclavicular or chondrosternal), and is typically associated with ongoing care for residual symptoms or recovery.

Causes

Other sternum sprains are initially caused by direct trauma to the chest, such as sports injuries, falls, or physical altercations. They can also result from excessive or repetitive bending or twisting movements that stress the sternum’s ligamentous structures. The subsequent encounter code applies when the patient is being managed for the aftermath of this initial injury, such as during rehabilitation or monitoring for complications.

Risk Factors

• Participating in contact sports or activities with a risk of falls.
• Having a history of previous chest injuries.
• Lack of protective gear during high-risk activities.
• Occupations involving repetitive upper body movements or heavy lifting.

Symptoms

• Persistent or recurring pain around the sternum.
• Swelling or tenderness in the sternum area.
• Pain that worsens with movement or deep breathing.
• Possible bruising over the injured site.
• Limited range of motion in the chest or shoulder area.

Diagnosis

Physical examination by a healthcare provider is used to assess pain, tenderness, and functional limitations. Imaging tests, such as X-rays, may be used to rule out fractures or other structural issues. MRI or ultrasound may be used for a clearer view of soft tissue injuries if residual damage is suspected. The diagnosis confirms the ongoing nature of the sprain and the need for continued care.

Treatment Options

• Rest and activity modification to avoid re-injury.
• Pain relievers or anti-inflammatory medications to manage discomfort.
• Physical therapy to restore strength and mobility.
• Stabilization using a chest brace if necessary.
• Follow-up imaging or assessments to monitor healing progress.

Prognosis and Follow-Up

Most sternum sprains heal within a few weeks to months with appropriate care. The subsequent encounter code is used during the active treatment phase, which may include regular follow-ups to ensure proper healing and address any persistent symptoms. Full recovery is typical, but severe injuries may require extended rehabilitation.

Complications

• Chronic pain or stiffness in the chest area.
• Reduced range of motion in the shoulder or upper body.
• Re-injury if activity restrictions are not followed.
• Development of scar tissue affecting mobility.

Lifestyle & Prevention

• Avoid high-impact activities until fully healed.
• Use proper protective gear during sports or work.
• Practice good posture to reduce strain on the chest.
• Engage in gradual strength training to support ligament recovery.

When to Seek Professional Help

Seek care if symptoms worsen, new pain develops, or there are signs of infection (e.g., redness, fever). Immediate attention is needed for severe pain, difficulty breathing, or suspected re-injury.

Tips for Medical Coders

Use this code for subsequent encounters related to an other sprain of the sternum when the patient is receiving active treatment or evaluation during the healing phase. Document the nature of the follow-up care, including any ongoing symptoms, treatment provided, and the reason for the encounter to support medical necessity. Ensure the initial injury was appropriately coded and that this code reflects the continued management of the condition.