* Fields marked with an asterisk (*) are optional or conditionally required. Not all device records will hold values for these fields. A search based on these fields will not query all records on AccessGUDID.
✝ Fields marked with a dagger (✝) are generated by the NLM from the information in the device record, and are not explicitly present in the device data. The Implantable filter returns devices whose FDA product code is associated with implantable devices, systems, and accessories.