A hiatus hernia or hiatal hernia is the protrusion (or herniation) of the upper part of the stomach into the thorax through a tear or weakness in the diaphragm. The surgical procedure used is called Nissen fundoplication. In fundoplication, the gastric fundus (upper part) of the stomach is wrapped, or plicated, around the inferior part of the esophagus, preventing herniation of the stomach through the hiatus in the diaphragm and the reflux of gastric acid. The procedure is now commonly performed laparoscopically. Lap. hiatal hernia is coded using 43281, whereas lap gastric banding by 43770. Gastric banding is done for morbidly obese patients and it's a bariatric surgery. But you need to add modifier 52 to the CPT 43770 when only one component (either of the gastric band and subcutaneous port components) are placed. As per CCI edits, there's no bundling between these two codes. So you could bill these two together. But remember to provide supporting documentation along with the claim, specially documentation to prove the medical necessity of lap. gastric procedure.
from supercoder.