O02.1
Missed abortion
Clinical Classification Guidelines
Inclusion Terms
- Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus
Excludes Type 1
- failed induced abortion (O07.-)
- fetal death (intrauterine) (late) (O36.4)
- missed abortion with blighted ovum (O02.0)
- missed abortion with hydatidiform mole (O01.-)
- missed abortion with nonhydatidiform (O02.0)
- missed abortion with other abnormal products of conception (O02.8-)
- missed delivery (O36.4)
- stillbirth (P95)
Medical Intelligence & Overview
Missed abortion, also known as missed miscarriage, occurs when a fetus dies in the womb before 20 weeks of pregnancy but remains inside the uterus. Unlike other types of miscarriage, there is often no immediately noticeable bleeding or pain, making detection more challenging. It is a common pregnancy complication that requires medical attention to confirm the diagnosis and discuss appropriate management options.
Causes & Symptoms
Clinical Causes: Chromosomal abnormalities in the fetus Problems with the uterus, such as abnormalities or fibroids Hormonal imbalances, including progesterone deficiency Infections that affect pregnancy health Maternal health conditions like uncontrolled diabetes or thyroid disorders Lifestyle factors such as smoking, drug use, or excessive alcohol consumption Trauma or injury to the abdomen
Key Symptoms: Absence of pregnancy symptoms like nausea or breast tenderness Light or no vaginal bleeding No fetal movement detected on ultrasound Initial signs of pregnancy may still be present, making diagnosis less obvious Potential ultrasound findings of a non-viable fetus or missed fetal heartbeat
Diagnostic & Treatment
Diagnosis Path: Diagnosis primarily involves ultrasound examination, which can reveal the absence of fetal heartbeat and confirm fetal death. Blood tests measuring levels of human chorionic gonadotropin (hCG) may also support diagnosis, showing levels that are inconsistent with a viable pregnancy. A detailed medical history and physical examination are essential for ruling out other pregnancy-related issues.
Treatment Protocols: Management options depend on the stage of pregnancy, patient health, and personal preference. These may include: - Medical management with medications to induce miscarriage - Surgical procedures like dilation and curettage (D&C) to remove fetal tissue - Expectant management, in which the body naturally expels the retained tissue over time Close medical supervision is necessary to prevent complications such as infection or excessive bleeding during treatment. Emotional support is also vital, as a missed abortion can be emotionally distressing for the patient.
Clinical Advice & FAQs
Billing Guidance
Is O02.1 a billable ICD-10 code?
Yes, O02.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report O02.1?
Clinical documentation must specify the nature of Missed abortion and any associated comorbidities for accurate reporting.
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