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The CPT® Code 82938 refers to a specific laboratory test known as the gastrin after secretin stimulation test. This test is designed to measure the levels of gastrin, a hormone that plays a crucial role in the digestive process. Gastrin is produced by G-cells located in the gastric mucosa, which is the lining of the stomach. The secretion of gastrin is primarily stimulated by the presence of food in the stomach, leading to the release of gastric acid, which is essential for digestion. Additionally, gastrin influences other digestive organs; it prompts the pancreas to release digestive enzymes, stimulates the liver to produce bile, and enhances intestinal motility, thereby facilitating the digestive process. The gastrin after secretin stimulation test is particularly valuable in diagnosing various gastrointestinal conditions. It is often utilized to identify tumors located in the pancreas and small intestine, a condition known as G-cell hyperplasia, pernicious anemia, and to investigate the underlying causes of recurrent peptic ulcers. The procedure involves obtaining a blood sample through venipuncture, which is performed at the time of secretin injection and subsequently at intervals of 5, 10, 15, and 30 minutes post-injection. The serum collected is then analyzed using a quantitative chemiluminescent immunoassay, a sensitive method that allows for precise measurement of gastrin levels in the blood.
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The gastrin after secretin stimulation test is indicated for several specific medical conditions and diagnostic purposes. The following are the primary indications for performing this test:
The gastrin after secretin stimulation test involves a series of procedural steps to ensure accurate measurement of gastrin levels. The following outlines the key steps involved in the procedure:
After the gastrin after secretin stimulation test is completed, patients may be monitored briefly to ensure there are no immediate adverse reactions to the secretin injection. There are typically no specific post-procedure care requirements, and patients can usually resume their normal activities shortly after the test. However, it is advisable for patients to follow any additional instructions provided by their healthcare provider regarding follow-up care or further testing based on the results of the gastrin levels measured during the procedure.
| Short Descr | GASTRIN TEST | Medium Descr | GASTRIN AFTER SECRETIN STIMULATION | Long Descr | Gastrin after secretin stimulation | 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 |
| 90 | Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number. |
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| Pre-1990 | Added | Code added. |
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