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The CPT® Code 82941 refers to a laboratory test specifically designed to measure the levels of gastrin in the blood. Gastrin is a crucial hormone that is produced by G-cells located in the gastric mucosa, which is the lining of the stomach. The primary function of gastrin is to stimulate the secretion of gastric acid, which is essential for the digestion of food. The release of gastrin is typically triggered by the ingestion of food, as the presence of food in the stomach signals the need for increased gastric acid production to aid in digestion. In addition to its role in gastric acid secretion, gastrin also has secondary effects on other digestive organs; it mildly stimulates the pancreas to release digestive enzymes, prompts the liver to secrete bile, and enhances intestinal motility, thereby facilitating the overall digestive process. To perform this test, a blood sample is collected through a procedure known as venipuncture, which is separately reportable. The serum obtained from the blood sample is then analyzed using a quantitative chemiluminescent immunoassay, a sensitive and specific method for measuring hormone levels in the bloodstream.
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The gastrin test (CPT® Code 82941) is indicated for various clinical scenarios where the measurement of gastrin levels is necessary to assess gastric function or diagnose specific conditions. The following are the explicitly provided indications for performing this test:
The procedure for obtaining gastrin levels involves several key steps that ensure accurate measurement and analysis. The following procedural steps are explicitly outlined:
After the gastrin test is completed, there are generally no specific post-procedure care requirements for the patient. However, it is advisable for patients to remain hydrated and to follow any additional instructions provided by their healthcare provider. The results of the gastrin test will typically be reviewed by the physician, who will interpret the findings in the context of the patient's overall clinical picture and may recommend further diagnostic steps or treatment based on the results.
| Short Descr | ASSAY OF GASTRIN | Medium Descr | ASSAY OF GASTRIN | Long Descr | Gastrin | 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. | 77 | Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | 91 | Repeat clinical diagnostic laboratory test: in the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test results. under these circumstances, the laboratory test performed can be identified by its usual procedure number and the addition of modifier 91. note: this modifier may not be used when tests are rerun to confirm initial results; due to testing problems with specimens or equipment; or for any other reason when a normal, one-time, reportable result is all that is required. this modifier may not be used when other code(s) describe a series of test results (eg, glucose tolerance tests, evocative/suppression testing). this modifier may only be used for laboratory test(s) performed more than once on the same day on the same patient. | GA | Waiver of liability statement issued as required by payer policy, individual case | 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 |
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| 2013-01-01 | Changed | Medium Descriptor changed. |
| Pre-1990 | Added | Code added. |
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