O26.33 Retained intrauterine contraceptive device in pregnancy, third trimester

Name of the Condition

• Retained intrauterine contraceptive device in pregnancy, third trimester
• ICD Code: O26.33

Summary

Retained intrauterine contraceptive device (IUCD) in pregnancy, third trimester, refers to the presence of an IUCD that remains in the uterine cavity during the third trimester of pregnancy. This condition requires careful evaluation to assess risks to both the mother and the fetus, as the device may be associated with complications such as infection, preterm labor, or fetal injury. Management focuses on determining the device's position and deciding whether removal is necessary or safe during this late stage of pregnancy.

Causes

The primary cause is the failure to remove an IUCD before conception or the unawareness of pregnancy at the time of device placement. This may occur due to missed menstrual periods, irregular cycles, or contraceptive failure. In some cases, the device may be intentionally left in place if removal is deemed too risky earlier in pregnancy.

Risk Factors

Risk factors include delayed recognition of pregnancy, failure to remove the IUCD after a positive pregnancy test, or a history of contraceptive use without regular follow-up. Women with irregular menstrual cycles or those who do not seek prenatal care promptly may be at higher risk. Advanced gestational age (third trimester) increases the complexity of management.

Symptoms

Symptoms may include vaginal bleeding, pelvic pain, or signs of infection (e.g., fever, discharge). However, many cases are asymptomatic and detected incidentally during routine prenatal imaging or physical examination.

Diagnosis

Diagnosis is typically made through ultrasound imaging, which can visualize the IUCD within the uterine cavity. Clinical evaluation may include assessing the device's position relative to the placenta, fetus, or cervical os. Additional imaging or monitoring may be used to evaluate for complications.

Treatment Options

Treatment depends on the device's location and the pregnancy's stage. If the device is in the lower uterine segment or near the cervix, removal may be attempted. If the device is embedded in the placenta or poses a high risk of bleeding, removal may be deferred until after delivery. Close monitoring for complications is essential.

Prognosis and Follow-Up

Prognosis varies based on the device's position and any associated complications. Most pregnancies proceed to term, but there is an increased risk of preterm labor, infection, or fetal injury. Follow-up includes regular prenatal visits, imaging, and monitoring for symptoms.

Complications

Complications may include preterm labor, miscarriage, infection, placental abruption, or fetal injury. The risk of complications increases if the device is embedded in the placenta or cervix.

Lifestyle & Prevention

Prevention involves ensuring IUCD removal before conception or early in pregnancy. Women using IUCDs should be counseled on the importance of pregnancy testing and timely device removal. Regular prenatal care helps detect retained devices early.

When to Seek Professional Help

Seek medical attention for vaginal bleeding, pelvic pain, fever, or signs of infection. Prompt evaluation is necessary if the device is suspected to be in a high-risk position (e.g., near the cervix or placenta).

Tips for Medical Coders

Document the trimester (third trimester) and any associated complications. Include details about the device's location (e.g., lower uterine segment, placenta) and management decisions (e.g., deferred removal, attempted extraction). Ensure documentation supports the specificity of O26.33.