Z90.721 Acquired absence of ovaries, unilateral

ICD10CM code

#### Name of the Condition
- Acquired absence of ovaries, unilateral
- Related ICD Code: Z90.721

#### Summary
Acquired absence of ovaries, unilateral, refers to the removal or loss of one ovary due to surgery or other medical interventions. This condition affects hormonal balance but generally leaves the remaining ovary to continue functioning.

#### Causes
- Surgical procedures such as oophorectomy, typically due to ovarian cysts, tumors, or endometriosis.
- Trauma leading to the removal of an ovary.
- Medical treatment for malignancies that require ovary removal.

#### Risk Factors
- Previous surgeries related to ovarian conditions.
- History of ovarian cysts or tumors.
- Endometriosis or recurrent pelvic inflammatory disease.
- Genetic predispositions to cancers requiring prophylactic ovary removal.

#### Symptoms
- Often asymptomatic if the other ovary remains functional.
- Possible hormonal imbalances affecting menstruation or fertility.
- Menopause-like symptoms if the remaining ovary is insufficient.

#### Diagnosis
- Medical history and physical examination.
- Imaging studies (e.g., ultrasound, MRI) to confirm absence and check the status of the remaining ovary.
- Blood tests to evaluate hormone levels.

#### Treatment Options
- Hormone replacement therapy if required to manage symptoms of hormonal imbalance.
- Fertility treatments if necessary for conception.
- Regular monitoring to ensure health of the remaining ovary.

#### Prognosis and Follow-Up
- Generally good if the remaining ovary is healthy.
- Regular follow-up visits to monitor ovarian and overall reproductive health.
- Continuous assessment to manage any emerging hormonal symptoms.

#### Complications
- Hormonal imbalances leading to irregular menstrual cycles or difficulty in conceiving.
- Increased risk of menopause-related conditions if hormonal support is inadequate.

#### Lifestyle & Prevention
- Healthy diet and regular exercise to support overall well-being.
- Monitoring for new ovarian or reproductive symptoms.
- Preventive care through regular gynecological check-ups.

#### When to Seek Professional Help
- Sudden or severe abdominal pain.
- Significant changes in menstrual cycle or onset of menopause-like symptoms.
- Concerns about fertility or hormonal balance.

#### Additional Resources
- [American College of Obstetricians and Gynecologists (ACOG)](https://www.acog.org/)
- [National Ovarian Cancer Coalition (NOCC)](https://ovarian.org/)

#### Tips for Medical Coders
- Ensure specific documentation mentions unilateral absence to distinguish from bilateral absence.
- Verify the reason for absence is documented to accurately capture any associated conditions or procedures.
- Avoid confusing with congenital absence; the acquired nature should be evident in medical records.

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