O01.0
Classical hydatidiform mole
Clinical Classification Guidelines
Inclusion Terms
- Complete hydatidiform mole
Medical Intelligence & Overview
A classical hydatidiform mole, also known as a complete hydatidiform mole, is a type of abnormal pregnancy characterized by the growth of abnormal tissue within the uterus. It occurs when the tissue that would normally develop into a fetus instead forms a mass of cystic, grape-like vesicles, often leading to pregnancy complications. This condition is part of a group of diseases known as gestational trophoblastic diseases and requires medical attention for management and monitoring.
Causes & Symptoms
Clinical Causes: Genetic anomalies involving the fertilized egg where no viable fetus develops Turner syndrome or androgenetic fertilization, leading to abnormal placental tissue formation Random errors during conception that disrupt normal embryonic development
Key Symptoms: Vaginal bleeding, often bright red and occurring in the first trimester Severe nausea and vomiting, more intense than typical early pregnancy symptoms Enlargement of the uterus beyond normal size for gestational age Passage of grape-like vesicles or tissue from the vagina Absence of fetal heartbeat on ultrasound Pelvic pressure or discomfort High levels of human chorionic gonadotropin (hCG) detected in blood tests
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves a combination of ultrasound imaging, blood tests, and physical examination. Ultrasound typically reveals a characteristic 'snowstorm' pattern without a fetus. Elevated hCG levels, disproportionate to gestational age, also suggest a molar pregnancy. Confirmatory diagnosis may require histopathological examination of the evacuated tissue. Close monitoring following diagnosis is essential to ensure complete removal of abnormal tissue and to detect any potential progression to more serious conditions.
Treatment Protocols: The primary treatment for a complete hydatidiform mole is uterine evacuation, usually performed via surgical curettage. After removal, patients are monitored with serial hCG measurements to ensure levels return to normal, indicating complete eradication of molar tissue. Contraception is typically recommended during this period to prevent confusion between disease progression and pregnancy. In some cases, additional treatments such as chemotherapy may be necessary if trophoblastic disease develops or persists. Follow-up care also involves regular ultrasound scans and blood tests to detect any early signs of complications or recurrence.
Clinical Advice & FAQs
Billing Guidance
Is O01.0 a billable ICD-10 code?
Yes, O01.0 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report O01.0?
Clinical documentation must specify the nature of Classical hydatidiform mole and any associated comorbidities for accurate reporting.
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