43239

Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple

Current Procedural Terminology (CPT) code 43239 describes a diagnostic and therapeutic procedure commonly known as an upper endoscopy or esophagogastroduodenoscopy (EGD) with biopsy. During this procedure, the provider uses a flexible endoscope passed transorally (through the mouth) to thoroughly examine the mucosal lining of the upper gastrointestinal tract, which includes the esophagus, the stomach, and either the duodenal bulb or the second portion of the duodenum. This visual inspection is crucial for identifying structural abnormalities, sources of bleeding, inflammation, mucosal lesions, tumors, ulcers, or strictures. If the provider identifies any suspicious, abnormal, or clinically significant areas during the visual inspection, they will introduce biopsy forceps through the working channel of the endoscope. The forceps are used to grasp and remove small mucosal tissue samples (biopsies). The code applies regardless of whether a single biopsy or multiple biopsies are taken from one or various sites within the upper GI tract. The collected tissue specimens are subsequently preserved and sent to a pathology laboratory for microscopic analysis to diagnose conditions such as Helicobacter pylori infection, Barrett's esophagus, celiac disease, gastritis, peptic ulcer disease, or gastrointestinal malignancies. The procedure requires appropriate patient preparation, including fasting, and is typically performed under conscious sedation or monitored anesthesia care to ensure patient comfort and safety. Once the visual inspection is complete and all necessary biopsies are obtained, the endoscope is carefully withdrawn. The patient is then monitored in a recovery area until the effects of the sedation wear off. This CPT code represents one of the most frequently performed endoscopic procedures and is integral to the management and diagnosis of upper gastrointestinal pathology.

Clinical Indications

  • Dysphagia (difficulty swallowing) or odynophagia (painful swallowing)
  • Persistent or refractory gastroesophageal reflux disease (GERD)
  • Unexplained iron-deficiency anemia or suspected chronic upper GI blood loss
  • Persistent dyspepsia, upper abdominal pain, or unexplained weight loss
  • Surveillance for known or suspected Barrett's esophagus
  • Suspected celiac disease requiring duodenal biopsy
  • Evaluation of suspected Helicobacter pylori infection
  • Follow-up for healing of previously identified gastric or duodenal ulcers

Procedure Steps

  1. The patient is placed in the left lateral decubitus position and administered appropriate sedation and local oropharyngeal anesthesia.
  2. A bite block is placed in the patient's mouth to protect the teeth and the endoscope.
  3. The flexible endoscope is advanced transorally through the oropharynx and the upper esophageal sphincter.
  4. The provider visually inspects the esophageal mucosa, noting any strictures, esophagitis, or mucosal irregularities.
  5. The endoscope is advanced through the lower esophageal sphincter into the stomach.
  6. Air is insufflated to distend the stomach, allowing for a thorough evaluation of the cardia, fundus, body, and antrum, often utilizing a retroflexion maneuver.
  7. The endoscope is then passed through the pylorus to inspect the duodenal bulb and the second portion of the duodenum.
  8. Upon identifying abnormal or targeted mucosa (e.g., suspected celiac disease in the duodenum, ulcers in the stomach, or Barrett's in the esophagus), biopsy forceps are passed through the endoscope's working channel.
  9. Single or multiple mucosal tissue samples are pinched off and retrieved.
  10. The tissue specimens are placed in formalin or appropriate transport media and sent to pathology.
  11. The endoscope is slowly withdrawn while performing a final inspection of the upper GI tract.
  12. The patient is transferred to the recovery room and monitored until stable.

Coding Guidelines

  • CPT 43239 is reported only once per session, regardless of whether a single biopsy or multiple biopsies are obtained.
  • Do not report 43239 in conjunction with diagnostic EGD (43235) as the diagnostic evaluation is inherently included in the surgical endoscopic procedure.
  • If a biopsy is performed on one lesion and a different technique (e.g., snare polypectomy, 43251) is performed on a separate lesion, both may be reported with an appropriate modifier (e.g., modifier 59 or XS) to indicate separate sites.
  • If a biopsy of a lesion is followed by the excision/removal of the exact same lesion during the same encounter, code only the excision/removal, not the biopsy.
  • Testing for Helicobacter pylori using a rapid urease test (e.g., CLO test) during the endoscopy is typically billed using a separate pathology/laboratory code in addition to the biopsy code 43239.
  • Ensure documentation explicitly describes the location(s) biopsied and the method used (e.g., cold forceps).

Associated ICD-10 Codes