Q50.02 Congenital absence of ovary, bilateral

Name of the Condition

• Congenital absence of ovary, bilateral (ICD Code: Q50.02)

Summary

Congenital absence of ovary, bilateral is a rare congenital condition characterized by the complete absence of both ovaries at birth. This structural anomaly affects the female reproductive system and may impact hormonal development and fertility. The condition is part of a broader category of congenital malformations of the ovaries and related structures.

Causes

The exact causes of bilateral ovarian absence are often not fully understood. These malformations typically result from disruptions during embryonic development, such as failed formation or regression of the gonadal ridge, which gives rise to the ovaries. Genetic factors or errors in early tissue differentiation may contribute, though specific triggers are frequently unidentified.

Risk Factors

• Female sex, as the condition affects the ovaries, a female reproductive structure.
• Genetic predispositions or familial patterns of congenital anomalies.
• Maternal exposures or conditions during pregnancy that affect fetal gonadal development.

Symptoms

Symptoms depend on the severity and associated anomalies. Some cases may be asymptomatic and discovered incidentally. Potential symptoms include delayed or absent puberty, primary amenorrhea, or infertility. Associated conditions, such as streak gonads or Müllerian duct abnormalities, may also present with related signs.

Diagnosis

Diagnosis is typically made through imaging studies, such as pelvic ultrasound or MRI, which can reveal the absence of ovarian tissue. Hormonal evaluations may show elevated gonadotropins and low estrogen levels, consistent with ovarian failure. Genetic testing or karyotyping may be performed to assess for associated syndromes.

Treatment Options

Management focuses on addressing symptoms and associated conditions. Hormone replacement therapy (HRT) may be used to induce puberty and maintain secondary sexual characteristics. Fertility options, such as oocyte donation, may be considered for those desiring pregnancy. Psychological support and counseling are often recommended.

Prognosis and Follow-Up

Prognosis depends on associated anomalies and timely intervention. With appropriate hormone therapy, individuals can achieve normal physical development. Long-term follow-up is necessary to monitor bone health, cardiovascular risk, and psychological well-being. Fertility outcomes vary based on individual circumstances.

Complications

• Delayed or absent puberty due to lack of ovarian hormones.
• Infertility, as ovarian function is absent.
• Increased risk of osteoporosis from estrogen deficiency.
• Psychological distress related to reproductive health concerns.

Lifestyle & Prevention

• Regular bone density monitoring and calcium/vitamin D supplementation to mitigate osteoporosis risk.
• Balanced diet and exercise to support overall health.
• Mental health support to address emotional or psychological impacts.
• Genetic counseling for families with a history of congenital anomalies.

When to Seek Professional Help

Seek medical attention if there are signs of delayed puberty, absent menstrual cycles by age 15, or concerns about fertility. Prompt evaluation is important for early diagnosis and management of associated conditions.

Tips for Medical Coders

When coding for congenital absence of ovary, bilateral (Q50.02), ensure documentation confirms bilateral absence and rules out other conditions. Verify that the diagnosis is supported by clinical findings, imaging, or laboratory results. Note any associated anomalies or syndromes, as these may require additional coding. Follow guidelines for congenital malformations and ensure specificity in documentation.