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Official Description

Esophagogastroduodenoscopy, flexible, transoral; with transmural drainage of pseudocyst (includes placement of transmural drainage catheter[s]/stent[s], when performed, and endoscopic ultrasound, when performed)

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

An esophagogastroduodenoscopy (EGD) is a specialized upper gastrointestinal (UGI) endoscopic procedure that allows for a comprehensive examination of the esophagus, stomach, and duodenum, and in some cases, the jejunum. This procedure is particularly significant when addressing conditions such as pseudocysts, which are fluid-filled sacs that can develop in the gastrointestinal wall. During the EGD, a flexible fiberoptic endoscope is utilized, which is a thin, flexible tube equipped with a light and camera, enabling the physician to visualize the internal structures of the upper GI tract in real-time. The procedure begins with the administration of a local anesthetic to numb the mouth and throat, facilitating the insertion of the endoscope. As the patient swallows, the endoscope is carefully advanced through the esophagus into the stomach, where air is introduced to expand the stomach for better visibility. The physician inspects various regions of the stomach, including the cardia, fundus, and antrum, for any abnormalities. Following this, the endoscope is further advanced into the duodenum and/or jejunum, allowing for a thorough inspection of the mucosal surfaces. In cases where a pseudocyst is identified, additional techniques such as endoscopic ultrasound may be employed to accurately locate the cyst. This involves the use of a scanning echoendoscope, which provides ultrasound imaging to guide the physician in puncturing the pseudocyst and draining its contents. The procedure may also include the placement of a transmural drainage catheter or stent to ensure continued drainage and prevent future complications. Overall, the EGD with transmural drainage of a pseudocyst is a critical intervention that combines diagnostic and therapeutic elements to manage complex gastrointestinal conditions effectively.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The esophagogastroduodenoscopy (EGD) with transmural drainage of a pseudocyst is indicated for various clinical scenarios where intervention is necessary to address gastrointestinal abnormalities. The following conditions may warrant this procedure:

  • Pseudocyst Formation - The presence of a pseudocyst in the gastrointestinal wall, which may require drainage to alleviate symptoms or prevent complications.
  • Gastrointestinal Obstruction - Situations where a pseudocyst may contribute to obstruction in the gastrointestinal tract, necessitating intervention.
  • Fluid Accumulation - Cases of significant fluid accumulation within a pseudocyst that could lead to discomfort or other complications.
  • Diagnostic Evaluation - The need for a thorough examination of the upper gastrointestinal tract to identify underlying issues related to the pseudocyst or other abnormalities.

2. Procedure

The procedure for esophagogastroduodenoscopy with transmural drainage of a pseudocyst involves several critical steps to ensure effective diagnosis and treatment. The following outlines the procedural steps:

  • Step 1: Preparation and Anesthesia - The patient is prepared for the procedure, which includes the administration of a local anesthetic spray to numb the mouth and throat, facilitating the insertion of the endoscope.
  • Step 2: Insertion of the Endoscope - A hollow mouthpiece is placed in the patient's mouth, and the flexible fiberoptic endoscope is inserted. The patient is instructed to swallow, allowing the endoscope to advance through the esophagus.
  • Step 3: Visualization of the Esophagus and Stomach - Once the endoscope passes the cricopharyngeal region, it is guided under direct visualization. The esophagus is thoroughly inspected for abnormalities, followed by the advancement of the endoscope into the stomach, which is insufflated with air for better visibility.
  • Step 4: Inspection of the Duodenum and Jejunum - The endoscope is further advanced through the pylorus into the duodenum and/or jejunum, where the mucosal surfaces are inspected for any abnormalities.
  • Step 5: Identification of the Pseudocyst - The pseudocyst located within the gastrointestinal wall is identified. A scanning echoendoscope may be introduced to provide ultrasound imaging for precise localization.
  • Step 6: Drainage of the Pseudocyst - A needle is used to puncture the pseudocyst, allowing for the drainage of its fluid contents. This step may involve the use of diathermic needle cautery to create a fistula between the pseudocyst and the gastrointestinal lumen.
  • Step 7: Placement of Drainage Catheter or Stent - A transmural drainage tube may be inserted to maintain patency of the tract, ensuring continued drainage of the pseudocyst.
  • Step 8: Withdrawal and Final Inspection - The endoscope is withdrawn, and the mucosal surfaces are inspected once more for any signs of ulcerations, varices, bleeding sites, lesions, strictures, or other abnormalities.

3. Post-Procedure

After the completion of the esophagogastroduodenoscopy with transmural drainage, the patient is monitored for any immediate complications. Post-procedure care may include instructions regarding dietary modifications, potential symptoms to watch for, and follow-up appointments to assess the effectiveness of the drainage and monitor for any recurrence of the pseudocyst. Patients may experience some throat discomfort or mild sedation effects, which typically resolve shortly after the procedure. It is essential to provide clear guidance on when to seek medical attention, particularly if there are signs of infection or other complications.

Short Descr EGD W/TRANSMURAL DRAIN CYST
Medium Descr EGD TRANSORAL TRANSMURAL DRAINAGE PSEUDOCYST
Long Descr Esophagogastroduodenoscopy, flexible, transoral; with transmural drainage of pseudocyst (includes placement of transmural drainage catheter[s]/stent[s], when performed, and endoscopic ultrasound, when performed)
Status Code Active Code
Global Days 000 - Endoscopic or Minor Procedure
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 3 - Special payment adjustment rules for multiple endoscopic procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 1 - Statutory payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Endoscopic Base Code 43235  Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Hospital Part B services paid through a comprehensive APC
ASC Payment Indicator Device-intensive procedure added to ASC list in CY 2008 or later; paid at adjusted rate.
Type of Service (TOS) 2 - Surgery
Berenson-Eggers TOS (BETOS) P8B - Endoscopy - upper gastrointestinal
MUE 1
CCS Clinical Classification 70 - Upper gastrointestinal endoscopy, biopsy
GC This service has been performed in part by a resident under the direction of a teaching physician
51 Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d).
22 Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service.
52 Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
53 Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use).
58 Staged or related procedure or service by the same physician or other qualified health care professional during the postoperative period: it may be necessary to indicate that the performance of a procedure or service during the postoperative period was: (a) planned or anticipated (staged); (b) more extensive than the original procedure; or (c) for therapy following a surgical procedure. this circumstance may be reported by adding modifier 58 to the staged or related procedure. note: for treatment of a problem that requires a return to the operating/procedure room (eg, unanticipated clinical condition), see modifier 78.
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
78 Unplanned return to the operating/procedure room by the same physician or other qualified health care professional following initial procedure for a related procedure during the postoperative period: it may be necessary to indicate that another procedure was performed during the postoperative period of the initial procedure (unplanned procedure following initial procedure). when this procedure is related to the first, and requires the use of an operating/procedure room, it may be reported by adding modifier 78 to the related procedure. (for repeat procedures, see modifier 76.)
CR Catastrophe/disaster related
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GW Service not related to the hospice patient's terminal condition
GZ Item or service expected to be denied as not reasonable and necessary
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
X4 Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2017-01-01 Changed Moderate (Conscious) Sedation flag removed. See new Moderate Sedation category.
2014-01-01 Changed Description Changed
2001-01-01 Added First appearance in code book in 2001.
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