Answer:
First of all, CPT codes or Common Procedural Technology are numbers assigned to specific tasks and medical services.
Obstetrical Ultrasounds are coded depending on the service needed it, for example, the code 76816 is to examine fetal size or organs systems. Moreover, there are a code for each type of study, some of them are 76801, 76802, 76805, 76810, 76811, 76812, and 76817.
However, in this case, the patient needs to obtain fetal heartbeats and positions, which can be done with the code 76811, because allows to obtain detailed information about the fetal anatomy as such, like brain, ventricles, face heart, abdominal organs, the umbilical cord, and more. But, to use this code there must be needed elements from the code 76805 which is the ultrasound to see the pregnant uterus and real time images.
Actually, to use these codes, 76801, 76805, and 76811, they must be accompanied with other CPT codes, because some additional information is needed.
Therefore, if it's more detailed information needed, 76811 code is used.
