S92.425K Nondisplaced fracture of distal phalanx of left great toe, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of distal phalanx of left great toe, subsequent encounter for fracture with nonunion

Summary

This condition refers to a nondisplaced fracture of the distal phalanx (the bone at the tip) of the left great toe, where the bone remains in its natural position. It is a subsequent encounter, meaning the patient is being seen for follow-up care after the initial injury, and healing has not progressed as expected, resulting in nonunion (failure of the bone to heal properly).

Causes

Direct trauma or impact to the toe, such as stubbing, dropping objects, or injuries during physical activities, can cause this fracture. The bone breaks but does not shift out of alignment. Nonunion may occur due to inadequate immobilization, poor blood supply, infection, or other factors that impede healing.

Risk Factors

• Engaging in high-impact sports or activities with a risk of toe injury
• Wearing improper or ill-fitting footwear
• Osteoporosis or reduced bone density, which weakens the bones
• Older age, which may increase susceptibility to fractures
• Smoking or other factors that impair bone healing

Symptoms

• Persistent pain and tenderness localized to the tip of the left great toe
• Swelling and bruising around the affected area
• Difficulty bearing weight on the foot or moving the toe
• Possible deformity or instability if the fracture has not healed

Diagnosis

A healthcare provider performs a physical examination to assess pain, swelling, and movement. Imaging, typically an X-ray, confirms the fracture and verifies that it remains nondisplaced. Documentation of nonunion (lack of healing progress) is key to this diagnosis, often requiring comparison to prior imaging.

Treatment Options

• Extended immobilization with a splint or cast to promote healing
• Surgical intervention, such as bone grafting or fixation, if nonunion persists
• Pain management with over-the-counter or prescription medications
• Physical therapy to restore function and strength

Prognosis and Follow-Up

Prognosis depends on the underlying cause of nonunion and the effectiveness of treatment. With appropriate intervention, healing may still occur, but recovery may take longer than for a routine fracture. Regular follow-up with imaging is necessary to monitor progress.

Complications

• Chronic pain or discomfort
• Permanent deformity or instability of the toe
• Increased risk of future fractures
• Infection (if surgical intervention is required)

Lifestyle & Prevention

• Wear protective footwear during activities with a risk of toe injury
• Maintain bone health through a balanced diet and regular exercise
• Avoid smoking, which can impair bone healing
• Follow post-injury care instructions to support proper healing

When to Seek Professional Help

Seek medical attention if pain worsens, swelling increases, or there are signs of infection (e.g., redness, pus). Persistent symptoms or lack of healing progress should also prompt a visit to a healthcare provider.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture with nonunion. Ensure clinical notes specify the lack of healing progress and any interventions (e.g., imaging, surgical planning) to support the diagnosis. The code S92.425K requires clear documentation of nonunion and the subsequent nature of the encounter.