Q70.12 Webbed fingers, left hand

Name of the Condition

• Webbed fingers, left hand

Summary

Webbed fingers, left hand is a congenital condition where two or more fingers on the left hand are connected by skin or soft tissue. The fusion may involve partial or complete webbing, and the severity can range from a thin membrane to extensive tissue joining. This condition is present at birth and may affect one or multiple digits on the left hand.

Causes

Webbed fingers, left hand primarily result from genetic factors that disrupt normal limb development during fetal growth. The condition occurs when the fingers 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 between adjacent fingers on the left hand.
• 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 webbing. Imaging studies, such as X-rays, may be used to evaluate bone involvement and guide treatment planning.

Treatment Options

• Surgical separation: Typically recommended to improve function and appearance.
  • The surgery is usually performed before school age to optimize outcomes.
• Occupational therapy: May be used to enhance dexterity and function post-surgery.

Prognosis and Follow-Up

Prognosis is generally good with appropriate surgical intervention, which can improve both function and appearance. Follow-up care may include monitoring for complications and ongoing therapy to support recovery.

Complications

• Limited hand function if left untreated.
• Potential for social or psychological impact due to appearance.
• Risk of complications from surgery, such as infection or scarring.

Lifestyle & Prevention

• No specific prevention methods exist, as the condition is congenital.
• Early intervention and therapy can help manage functional challenges.

When to Seek Professional Help

Seek medical evaluation if webbing is noticed at birth or if functional impairment affects daily activities. A healthcare provider can assess the need for intervention.

Tips for Medical Coders

When coding for webbed fingers, left hand (Q70.12), ensure documentation specifies the left hand and the extent of webbing. Note whether the condition is isolated or part of a syndrome, as this may impact coding accuracy. Verify that the diagnosis aligns with clinical findings and that all relevant details are captured in the medical record.