Jun 1st, 2012
 Find out the latest on gastroesophageal reflux diagnosis and treatment coding. By Rebecca M. Hovis, CPC, CPC-P, CGIC Gastroesophageal reflux is the backward flow of the gastric contents into the esophagus due to improper functioning of the lower esophageal sphincter (also called the cardiac sphincter). Gastroesophageal reflux disease (GERD), ICD-9-CM 530.81 Esophageal reflux, is a ...