Q72.21 Congenital absence of both lower leg and foot, right lower limb

Name of the Condition

• Congenital absence of both lower leg and foot, right lower limb

Summary

Congenital absence of both lower leg and foot, right lower limb is a limb reduction defect where the lower leg and foot segments are missing on the right side. This condition affects mobility and may require medical evaluation and adaptive interventions.

Causes

The exact cause is often unknown but may involve genetic factors, disruptions in fetal limb development, or environmental influences during pregnancy. Vascular issues or amniotic band syndrome can also contribute to limb reduction.

Risk Factors

• Family history of limb abnormalities.
• Maternal exposure to certain medications, chemicals, or infections during pregnancy.
• Genetic syndromes or chromosomal abnormalities.

Symptoms

• Visible absence of the lower leg and foot on the right side at birth.
• Potential functional limitations affecting movement or balance.
• Possible associated anomalies in other body systems.

Diagnosis

Physical examination immediately after birth to assess limb structure. Prenatal ultrasound may detect limb differences before delivery. Imaging studies (e.g., X-rays) or genetic testing to evaluate severity and rule out syndromes.

Treatment Options

• Prosthetic fitting to improve mobility and function.
• Orthotic devices to support limb alignment.
• Physical therapy to enhance strength and balance.
• Surgical interventions may be considered for functional or cosmetic reasons.

Prognosis and Follow-Up

Prognosis depends on the severity of the defect and associated conditions. Early intervention with prosthetics and therapy can improve mobility and quality of life. Regular follow-up with a multidisciplinary team (e.g., orthopedics, physical therapy) is recommended to monitor development and adjust interventions as needed.

Complications

• Limited mobility or difficulty with balance.
• Potential for secondary musculoskeletal issues due to altered gait.
• Psychological or social challenges related to limb difference.

Lifestyle & Prevention

• Early prosthetic fitting and physical therapy to optimize function.
• Adaptive equipment (e.g., modified footwear, assistive devices) to support daily activities.
• Genetic counseling for families with a history of limb abnormalities.

When to Seek Professional Help

Seek immediate medical evaluation if limb absence is suspected during pregnancy or observed at birth. Consult a healthcare provider for persistent mobility issues, pain, or concerns about development.

Tips for Medical Coders

Document the specific limb affected (right lower limb) and the absence of both lower leg and foot segments. Ensure clinical notes support the diagnosis and specify any associated anomalies or syndromes. Use this code for congenital absence of both lower leg and foot on the right side; do not use for unilateral absence of other limb segments.