O26.713 Subluxation of symphysis (pubis) in pregnancy, third trimester

Name of the Condition

• Subluxation of symphysis (pubis) in pregnancy, third trimester
• ICD Code: O26.713

Summary

Subluxation of the symphysis pubis in the third trimester of pregnancy involves abnormal separation or movement of the pubic symphysis, a joint in the pelvis. This condition is associated with pelvic instability and may cause pain or functional impairment. It requires clinical evaluation to assess severity and guide management, as it can impact maternal mobility and late pregnancy well-being.

Causes

The condition typically arises from hormonal changes during pregnancy that relax ligaments, combined with mechanical stress from the growing uterus. Trauma or excessive pelvic strain may also contribute to joint instability. Underlying factors like pre-existing pelvic girdle pain or connective tissue disorders can increase susceptibility.

Risk Factors

Risk factors include multiparity, prior pelvic trauma, or a history of pelvic girdle pain. Conditions that increase pelvic load, such as macrosomia or prolonged labor, may elevate risk. Hormonal influences, such as elevated relaxin levels, and pre-existing joint laxity can also predispose individuals.

Symptoms

Symptoms often include pelvic pain, particularly in the pubic area, which may worsen with weight-bearing activities like walking or climbing stairs. Pain may radiate to the lower back or thighs. Functional limitations, such as difficulty with mobility or daily tasks, may also occur.

Diagnosis

Diagnosis involves a thorough clinical evaluation, including a detailed history and physical examination to assess pelvic stability and pain patterns. Imaging studies, such as X-rays or ultrasound, may be used to confirm joint separation or movement. Differential diagnosis may include other pelvic or musculoskeletal conditions.

Treatment Options

Treatment focuses on managing pain and stabilizing the pelvis. Options may include physical therapy, pelvic support devices, or analgesics. Activity modification and rest are often recommended. In severe cases, referral to a specialist for further management may be necessary.

Prognosis and Follow-Up

Prognosis is generally favorable with appropriate management, though symptoms may persist postpartum. Follow-up care is important to monitor recovery and address any ongoing issues. Most individuals experience improvement with conservative treatment, but severe cases may require extended rehabilitation.

Complications

Complications can include chronic pelvic pain, persistent instability, or difficulty with future pregnancies. Rarely, severe instability may affect mobility or require surgical intervention. Early recognition and management help minimize long-term risks.

Lifestyle & Prevention

Lifestyle modifications, such as avoiding heavy lifting or high-impact activities, may reduce strain on the pelvis. Prenatal exercises to strengthen pelvic muscles and maintain flexibility can support joint stability. Proper posture and ergonomic adjustments may also help prevent exacerbation.

When to Seek Professional Help

Seek medical attention if pelvic pain is severe, worsening, or accompanied by difficulty walking. Sudden changes in symptoms or new functional limitations warrant prompt evaluation. Persistent pain postpartum should also be assessed by a healthcare provider.

Tips for Medical Coders

Document the trimester of pregnancy and clinical findings supporting the diagnosis of symphysis pubis subluxation. Include details on symptom severity, functional impact, and any imaging or specialist referrals. Ensure the code aligns with the specific trimester documented in the medical record.