O43.23 Placenta percreta

Name of the Condition

• Placenta Percreta

Summary

Placenta percreta is a severe form of morbidly adherent placenta where the placenta abnormally attaches to the uterine wall and penetrates through the myometrium (uterine muscle layer), potentially invading adjacent structures like the bladder or bowel. This condition can lead to life-threatening complications during delivery, including severe hemorrhage and organ damage, requiring specialized management to minimize risks to both the mother and fetus.

Causes

Placenta percreta occurs due to abnormal placental implantation, where the placenta fails to separate properly from the uterine wall after delivery. This is often associated with scarring or damage to the uterine tissue, such as from prior uterine surgery (e.g., cesarean sections) or other uterine abnormalities that disrupt the normal separation process.

Risk Factors

• Prior uterine surgery, including multiple cesarean deliveries.
• Advanced maternal age.
• Placenta previa (placenta covering the cervix).
• Previous history of morbidly adherent placenta.
• Uterine conditions like fibroids or endometrial scarring.
• Multiparity (having had multiple pregnancies).

Symptoms

• Vaginal bleeding during the third trimester, which may be painless or accompanied by cramping.
• Abnormal placental location noted on prenatal imaging.
• Uterine tenderness or pain during pregnancy.
• Signs of anemia or shock if bleeding occurs.

Diagnosis

Diagnosis is typically made through a combination of prenatal imaging, such as ultrasound or MRI, which can detect abnormal placental invasion. Clinical evaluation and correlation with risk factors also play a role in confirming the condition.

Treatment Options

Management often involves a multidisciplinary approach, including planned delivery at a specialized center. Treatment may include hysterectomy (removal of the uterus) to control bleeding, or conservative measures if fertility preservation is desired, though these carry higher risks. Blood transfusions and other supportive care are commonly required.

Prognosis and Follow-Up

Prognosis depends on the extent of placental invasion and associated complications. Close follow-up is essential to monitor for delayed bleeding or other issues. Long-term outcomes may include infertility or the need for additional surgeries, depending on the treatment approach.

Complications

• Severe maternal hemorrhage, which can be life-threatening.
• Uterine rupture or damage to adjacent organs (e.g., bladder, bowel).
• Preterm delivery due to complications.
• Increased risk of infection or sepsis.
• Potential need for hysterectomy, impacting future fertility.

Lifestyle & Prevention

While placenta percreta cannot always be prevented, reducing risk factors (e.g., minimizing unnecessary uterine surgeries) may lower the likelihood. Prenatal care and early detection through imaging are critical for managing the condition effectively.

When to Seek Professional Help

Seek immediate medical attention if you experience vaginal bleeding during pregnancy, severe abdominal pain, or signs of shock (e.g., dizziness, rapid heartbeat). Prompt evaluation is necessary to address potential complications.

Tips for Medical Coders

When coding for placenta percreta (O43.23), ensure documentation supports the diagnosis, including imaging findings or clinical confirmation of placental penetration through the uterine wall. Note any associated complications or procedures, as these may impact coding specificity. Verify that the code aligns with the clinical scenario and documentation provided.