Q72.10 Congenital absence of unspecified thigh and lower leg with foot present

Name of the Condition

• Congenital absence of unspecified thigh and lower leg with foot present

Summary

Congenital absence of the unspecified thigh and lower leg with foot present is a rare birth defect where a newborn is missing the thigh and lower leg segments of one or both lower limbs, but the foot remains intact. 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 thigh and lower leg segments at birth, with the foot present.
• 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 or therapy can improve mobility and quality of life. Regular follow-up with specialists is recommended to monitor development and adjust treatments as needed.

Complications

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

Lifestyle & Prevention

• Early physical therapy to support motor development.
• Adaptive equipment (e.g., wheelchairs, walkers) to aid mobility.
• Genetic counseling for families with a history of limb abnormalities.

When to Seek Professional Help

Seek medical attention if a newborn shows signs of limb absence or malformation. Prenatal care providers should be consulted if limb differences are detected during ultrasound. Ongoing evaluation by specialists is important for managing associated conditions.

Tips for Medical Coders

Document the specific absence of the thigh and lower leg with the foot present. Ensure clinical notes specify the affected limb(s) and any associated anomalies. Code Q72.10 is used when the thigh and lower leg are absent, but the foot is present, without further specification.