Q70.23 Fused toes, bilateral

Name of the Condition

• Fused toes, bilateral

Summary

Fused toes, bilateral is a congenital condition where two or more toes on both feet are joined together. The fusion may involve soft tissue, bones, or both, and can range from a simple webbing of skin to a complete joining of the digits. This condition is present at birth and affects both feet, potentially impacting one or multiple toes on each foot.

Causes

Fused toes, bilateral primarily results from genetic factors that disrupt normal limb development during fetal growth. The condition occurs when the toes fail to separate properly, a process that typically completes by the eighth week of gestation. It can occur as an isolated anomaly or as part of a genetic syndrome, such as Apert syndrome or Poland syndrome.

Risk Factors

• Family history of syndactyly or related genetic conditions.
• Association with certain genetic syndromes that include limb malformations as a feature.

Symptoms

• Fusion of skin, nails, or bones between adjacent toes on both feet.
• Reduced range of motion and dexterity in the affected digits.
• Potential functional impairment, particularly in tasks requiring fine motor skills.

Diagnosis

Diagnosis is typically made through physical examination, which assesses the extent of fusion on both feet. Imaging studies, such as X-rays, may be used to evaluate bone involvement and guide treatment planning.

Treatment Options

• Surgical separation: May be considered to improve function or appearance, depending on the severity and impact on daily activities.
• Physical therapy: Can help maintain mobility and address any associated functional limitations.

Prognosis and Follow-Up

Prognosis is generally good, especially if the condition is isolated and does not affect function. Regular follow-up may be recommended to monitor for any changes or complications, particularly if surgery is performed.

Complications

• Functional impairment if the fusion restricts movement or causes discomfort.
• Potential for secondary issues, such as difficulty with footwear or gait.

Lifestyle & Prevention

• No specific preventive measures are available, as the condition is congenital.
• Adaptive footwear or custom inserts may help manage discomfort or functional challenges.

When to Seek Professional Help

Consult a healthcare provider if the fused toes cause pain, difficulty with mobility, or interfere with daily activities. Early evaluation is recommended for infants with visible toe fusion.

Tips for Medical Coders

Document the bilateral nature of the fused toes and any associated symptoms or complications. Ensure the diagnosis aligns with the clinical findings and specify whether the fusion involves soft tissue, bone, or both to support accurate coding.