Purpose: To estimate the gestational age of a fetus at the time of an event based on ultrasound data collected at a different time.
If an event occurs on a given date during a woman's pregnancy, then the gestational age at that moment can be calculated based on the ultrasound dates as determined on a separate date.
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Specialty: Obstetrics & Gynecology
Objective: other testing
ICD-10: O00, Z34,