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Code deleted, see 43754, 43755.

Official Description

Gastric intubation, aspiration, and fractional collections (eg, gastric secretory study); 1 hour

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 89135 involves gastric intubation, aspiration, and fractional collections, specifically designed for conducting a gastric secretory study over a duration of one hour. In this procedure, a flexible tube is inserted through the patient's nose or mouth and advanced into the stomach. This tube allows for the aspiration, or drawing out, of gastric fluids. The collected fluid is then analyzed to assess various gastric secretions and functions. This test is crucial for diagnosing conditions related to gastric secretory activity. It is important to note that if the procedure is extended to two hours, CPT® Code 89136 should be used. Additionally, if the stomach is stimulated during the test, resulting in a duration of two hours, CPT® Code 89140 is applicable, and for a three-hour duration with stimulation, CPT® Code 89141 should be utilized. Each of these codes reflects specific variations in the procedure's duration and the conditions under which it is performed, ensuring accurate coding and billing for the services rendered.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The gastric intubation, aspiration, and fractional collections procedure (CPT® Code 89135) is indicated for various clinical scenarios where assessment of gastric secretory function is necessary. This may include:

  • Gastric Secretory Studies to evaluate the production of gastric acid and other secretions, which can aid in diagnosing conditions such as peptic ulcers or gastritis.
  • Assessment of Gastric Motility to determine how well the stomach is functioning in terms of emptying and processing food.
  • Investigation of Gastrointestinal Disorders where abnormal gastric secretions may contribute to symptoms such as nausea, vomiting, or abdominal pain.

2. Procedure

The procedure for gastric intubation, aspiration, and fractional collections involves several key steps to ensure accurate collection and analysis of gastric secretions. The steps are as follows:

  • Step 1: Preparation involves ensuring that the patient is properly informed about the procedure and has provided consent. The patient may be required to fast for a certain period prior to the test to ensure accurate results.
  • Step 2: Insertion of the Tube entails the careful insertion of a flexible tube through the patient's nose or mouth, which is then guided down the esophagus and into the stomach. This step requires skill to minimize discomfort and ensure proper placement.
  • Step 3: Aspiration of Gastric Contents involves using the tube to draw out gastric fluids at specified intervals over the course of one hour. This is done to collect samples for analysis of gastric secretions.
  • Step 4: Collection and Analysis of the aspirated gastric fluid is performed, where the samples are typically sent to a laboratory for detailed analysis to assess the gastric secretory function.

3. Post-Procedure

After the completion of the gastric intubation and aspiration procedure, the patient is monitored for any immediate adverse reactions. It is common for patients to experience some discomfort or gagging during the procedure, but these symptoms typically resolve shortly after the tube is removed. Patients may be advised to resume normal activities and diet as tolerated, but specific instructions regarding dietary restrictions or follow-up appointments may be provided based on the results of the gastric secretory study. Additionally, any significant findings from the analysis of the gastric fluid may necessitate further evaluation or treatment, which should be discussed with the healthcare provider.

Short Descr SAMPLE STOMACH CONTENTS
Medium Descr GSTR INTUBAJ ASPIR&FXJAL COLLJ 1 HR
Long Descr Gastric intubation, aspiration, and fractional collections (eg, gastric secretory study); 1 hour
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 0 - Physician Service Code
Multiple Procedures (51) 0 - No payment adjustment rules for multiple 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) 0 - 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.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Ancillary Services
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
CCS Clinical Classification 234 - Pathology
Date
Action
Notes
2011-01-01 Deleted Code deleted, see 43754, 43755.
2009-01-01 Changed Code description changed
Pre-1990 Added Code added.
Code
Description
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