O73.1 Retained portions of placenta and membranes, without hemorrhage

Name of the Condition

• Retained Portions of Placenta and Membranes, Without Hemorrhage (O73.1)

Summary

Retained portions of placenta and membranes occur when all or part of the placenta or fetal membranes remain in the uterus after delivery, without associated bleeding. This condition requires monitoring and may necessitate intervention to prevent complications.

Causes

Retained portions of placenta and membranes can result from factors that impede placental separation, such as uterine atony, placental adhesion, or incomplete expulsion during delivery. In some cases, it may be related to abnormal placental development or uterine scarring.

Risk Factors

• Prolonged labor or difficult delivery.
• Previous uterine surgery (e.g., cesarean section).
• Advanced maternal age.
• Multiparity (multiple pregnancies).
• Placenta previa or accreta in prior pregnancies.
• Use of uterine relaxants during labor.

Symptoms

• Delayed or absent placental expulsion after delivery.
• Uterine subinvolution (failure to contract to normal size).
• Mild abdominal discomfort or cramping.
• Prolonged lochia (vaginal discharge) without heavy bleeding.

Diagnosis

Diagnosis is typically made clinically by assessing the absence of placental expulsion within a reasonable time after delivery, often confirmed by ultrasound to detect retained tissue. Physical examination may reveal an enlarged or boggy uterus.

Treatment Options

• Manual removal: Gentle manual extraction of retained tissue under anesthesia if expulsion does not occur spontaneously.
• Medication: Oxytocic agents (e.g., oxytocin) to promote uterine contraction and expulsion.
• Surgical intervention: Dilation and curettage (D&C) if other methods are ineffective or if infection is suspected.

Prognosis and Follow-Up

With prompt diagnosis and appropriate management, the prognosis is generally good. Follow-up care includes monitoring for signs of infection, uterine atony, or hemorrhage. Patients may require additional imaging or blood tests to ensure complete resolution.

Complications

• Uterine infection (endometritis).
• Postpartum hemorrhage (if hemorrhage develops later).
• Retained tissue leading to prolonged lochia or anemia.
• Rarely, uterine perforation during manual removal.

Lifestyle & Prevention

• Ensure timely delivery and proper uterine massage post-delivery to encourage placental expulsion.
• Maintain good prenatal care to identify and manage risk factors (e.g., placenta previa) early.
• Avoid unnecessary uterine interventions during labor when possible.

When to Seek Professional Help

Seek immediate medical attention if symptoms worsen, such as increased abdominal pain, fever, heavy bleeding, or signs of infection. Persistent lochia or failure of the uterus to contract after delivery also warrants evaluation.

Tips for Medical Coders

Document the absence of hemorrhage clearly, as this distinguishes O73.1 from codes involving bleeding. Include details on clinical assessment, imaging findings, and interventions (e.g., manual removal, D&C) to support accurate coding. Ensure documentation aligns with the clinical scenario to avoid miscoding.