Final answer:
The correct CPT code for ultrasound guidance for transabdominal amnioinfusion is 76946, which is essential for accurate healthcare billing.
Step-by-step explanation:
The CPT code for ultrasound guidance for transabdominal amnioinfusion is 76946. This code is specifically used for ultrasound guidance for the procedure, which is a prenatal procedure where fluid is introduced into the amniotic cavity. It is important to note that proper CPT coding is crucial for healthcare billing and that outdated or incorrect codes may lead to issues with insurance reimbursements.