Q66.212 Congenital metatarsus primus varus, left foot

Name of the Condition

• Congenital Metatarsus Primus Varus, Left Foot

Summary

Congenital metatarsus primus varus, left foot, is a structural foot deformity present at birth characterized by an inward deviation of the first metatarsal bone in the left foot. This condition affects the alignment of the forefoot, potentially leading to functional or cosmetic concerns.

Causes

The exact cause is not fully understood, but it is believed to involve a combination of genetic factors and disruptions during fetal development. Abnormalities in bone or soft tissue development may contribute to the deformity.

Risk Factors

• Family history of congenital foot deformities
• Intrauterine positioning (e.g., limited space)
• Maternal health conditions during pregnancy

Symptoms

• Visible inward deviation of the first metatarsal in the left foot
• Altered forefoot alignment
• Potential difficulty with footwear fitting as the child grows

Diagnosis

Physical examination by a healthcare provider to assess forefoot structure and alignment. Imaging studies (e.g., X-rays) may be used to evaluate bone abnormalities.

Treatment Options

• Observation
• Orthotic devices or bracing
• Physical therapy
• Surgical intervention in severe cases

Prognosis and Follow-Up

With early intervention, many children achieve improved alignment and function. Regular follow-up is important to monitor development and adjust treatment as needed.

Complications

• Persistent deformity if untreated
• Difficulty with footwear or walking
• Potential for secondary musculoskeletal issues

Lifestyle & Prevention

• Regular monitoring of foot development in infants
• Use of supportive footwear as recommended by a healthcare provider
• Avoidance of restrictive footwear that may exacerbate alignment issues

When to Seek Professional Help

Consult a healthcare provider if visible foot deformity is present at birth, if there is difficulty fitting footwear, or if walking or mobility is affected.

Tips for Medical Coders

Document the specific foot (left) and confirm the congenital nature of the deformity. Ensure clinical notes support the diagnosis and specify the affected side for accurate coding.