S92.215K Nondisplaced fracture of cuboid bone of left foot, subsequent encounter for fracture with nonunion

Name of the Condition

• Nondisplaced fracture of cuboid bone of left foot, subsequent encounter for fracture with nonunion

Summary

A nondisplaced fracture of the cuboid bone of the left foot involves a break in the cuboid, one of the seven tarsal bones in the midfoot, where the bone fragments remain in their normal alignment. This condition is classified as a subsequent encounter, indicating ongoing care after the initial treatment phase, and is associated with nonunion, meaning the fracture has failed to heal properly within the expected timeframe. The lack of displacement and presence of nonunion influence treatment approaches and recovery expectations.

Causes

Usually caused by direct trauma, such as falls, sports injuries, or motor vehicle accidents. Twisting or crushing injuries to the foot may also lead to this type of fracture. Nonunion can result from inadequate immobilization, poor blood supply to the bone, infection, or excessive movement at the fracture site during healing.

Risk Factors

• Participation in high-impact sports or activities with foot trauma risk.
• Osteoporosis or other bone-weakening conditions.
• Older age due to decreased bone density.
• Previous foot injuries or fractures.
• Improper footwear or inadequate protective gear.
• Smoking, which impairs bone healing.
• Certain medical conditions, such as diabetes, that affect circulation.

Symptoms

• Persistent pain at the fracture site, often worsening with weight-bearing.
• Swelling and tenderness in the midfoot or outer foot.
• Bruising and possible deformity of the foot.
• Difficulty walking or inability to bear weight on the left foot.
• Limited range of motion in the foot or ankle.

Diagnosis

Physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, CT scans, or MRI, are used to confirm the fracture and evaluate for nonunion. These tests help determine if the bone has healed or if additional intervention is needed.

Treatment Options

Treatment may include immobilization with a cast or brace to stabilize the foot and promote healing. Surgical options, such as bone grafting or internal fixation, might be considered for nonunion. Physical therapy is often recommended to restore strength and mobility once healing progresses.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion and response to treatment. Regular follow-up appointments with imaging are necessary to monitor healing. Recovery may be prolonged, and some patients may experience long-term functional limitations.

Complications

• Chronic pain or discomfort.
• Persistent nonunion requiring further intervention.
• Arthritis in the midfoot due to improper healing.
• Difficulty with mobility or daily activities.
• Increased risk of future fractures in the affected area.

Lifestyle & Prevention

• Wear appropriate footwear with good support during activities.
• Avoid high-impact activities that strain the foot until fully healed.
• Maintain a healthy diet rich in calcium and vitamin D to support bone health.
• Follow post-injury care instructions closely to reduce the risk of nonunion.
• Quit smoking to improve bone healing.

When to Seek Professional Help

Seek medical attention if pain worsens, swelling increases, or there is new deformity. Contact a healthcare provider if there is difficulty bearing weight or if symptoms do not improve with conservative treatment.

Tips for Medical Coders

Document the encounter as a subsequent visit for fracture care with nonunion. Ensure clinical notes specify the fracture type (nondisplaced), location (left foot cuboid), and the presence of nonunion. Include details about treatment provided and any imaging results to support coding accuracy.