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Official Description

Gastric acid analysis, includes pH if performed, each specimen

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 82930 refers to the procedure of gastric acid analysis, which includes the measurement of pH if performed, for each specimen collected. This procedure involves obtaining a sample of the stomach contents, which is crucial for assessing the gastric acid levels present. Gastric acid primarily consists of hydrochloric acid, secreted by the parietal cells in the stomach lining. The analysis is essential for diagnosing conditions related to abnormal gastric acid secretion, such as hypersecretion, which can lead to complications like gastric ulcers or esophageal damage due to gastroesophageal reflux disease (GERD). Conversely, hyposecretion may indicate underlying health issues, including pernicious anemia, atrophic gastritis, or Ménétrier's disease. The gastric acid analysis is typically conducted in two phases: first, without stimulation to evaluate the basal acid output through multiple timed samples, and second, following the administration of a stimulant medication that enhances gastric secretion, allowing for further sample collection. Each specimen is meticulously analyzed using titration assays to determine various parameters, including volume, color, hydrogen ion concentration, and pH levels. It is important to note that the analysis of each specimen is reported separately, ensuring precise documentation and evaluation of the gastric acid levels.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The gastric acid analysis procedure, coded as CPT® 82930, is indicated for various clinical scenarios where assessment of gastric acid secretion is necessary. The following conditions may warrant this analysis:

  • Hypersecretion This condition is characterized by excessive production of gastric acid, which can lead to complications such as gastric ulcers or esophageal damage due to gastroesophageal reflux.
  • Hyposecretion Reduced gastric acid secretion may indicate underlying health issues, including pernicious anemia, atrophic gastritis, or Ménétrier's disease.
  • Evaluation of Gastric Function The procedure is performed to assess the overall function of the stomach and its ability to secrete acid, which is crucial for digestion.

2. Procedure

The gastric acid analysis procedure involves several key steps to ensure accurate assessment of gastric acid levels. The following procedural steps are typically followed:

  • Step 1: Sample Collection A sample of the stomach contents is obtained through a separate reportable procedure. This may involve the use of an endoscope or other methods to access the stomach and collect the gastric fluid.
  • Step 2: Basal Acid Output Evaluation Multiple timed samples are collected without stimulation to evaluate the basal acid output. This phase is critical for determining the natural secretion levels of gastric acid.
  • Step 3: Stimulation and Additional Sampling Following the administration of a medication that stimulates gastric secretion, additional samples are collected. This step allows for the assessment of gastric acid production under stimulated conditions.
  • Step 4: Analysis of Specimens Each collected specimen is analyzed using titration assays. This analysis includes evaluating the volume, color, hydrogen ion concentration, and pH of the gastric contents to provide a comprehensive understanding of gastric acid levels.

3. Post-Procedure

After the gastric acid analysis procedure is completed, patients may be monitored for any immediate post-procedural effects, especially if sedation or anesthesia was used during sample collection. It is essential to provide appropriate post-procedure care, which may include monitoring for any signs of discomfort or complications. Patients should be informed about the expected recovery process and any follow-up appointments necessary to discuss the results of the gastric acid analysis. Additionally, healthcare providers should ensure that all specimens are accurately documented and reported separately, as required by the CPT® guidelines.

Short Descr GASTRIC ANALY W/PH EA SPEC
Medium Descr GASTRIC ACID ANALYIS W/PH EACH SPECIMEN
Long Descr Gastric acid analysis, includes pH if performed, each specimen
Status Code Statutory Exclusion (from MPFS, may be paid under other methodologies)
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
CLIA Waived (QW) No
APC Status Indicator Conditionally packaged laboratory tests
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T1H - Lab tests - other (non-Medicare fee schedule)
MUE 1
CCS Clinical Classification 233 - Laboratory - Chemistry and Hematology
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
Date
Action
Notes
2011-01-01 Added Added
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