CPT® Code 76946

Ultrasonic guidance for amniocentesis, as described by CPT® Code 76946, involves the use of ultrasound technology to assist in the performance of an amniocentesis procedure. Amniocentesis is a medical procedure typically conducted during early pregnancy to assess the presence of fetal chromosome disorders, such as Down syndrome, and to identify structural defects like spina bifida or anencephaly. Additionally, it can be utilized later in pregnancy to evaluate conditions such as Rh incompatibility, infections, or to assess fetal lung maturity. The process begins with an abdominal ultrasound of the pregnant uterus, which is essential for determining the fetus's position and locating the placenta. This initial imaging also allows for the evaluation of the amniotic fluid level and the identification of a suitable pocket of amniotic fluid for sampling. During the procedure, continuous ultrasound imaging is employed to ensure accurate needle placement within the amniotic fluid pocket, facilitating the aspiration of the fluid sample. Following the procedure, the physician is responsible for providing a comprehensive written report detailing the imaging component of the amniocentesis, which is crucial for medical records and further patient management.